1986 IUCN red list of threatened animals - IUCN Conservation Monitoring Centre. (International Union for Conservation of Nature and Natural Resources, 1986)

1988 IUCN red list of threatened animals (1988)

A-birding on a bronco - Bailey, Florence Merriam, 1863 -1948 (Houghton, Mifflin, 1896)

Abstract of proceedings of the Delaware Valley Ornithological Club of Philadelphia - Delaware Valley Ornithological Club. (Delaware Valley Ornithological Club, 1890)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1903)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1917)

The accipiters : goshawk, cooper's hawk, sharp-shinned hawk - United States. Bureau of Land Management. (Denver, Colo, 1979)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1930)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1931)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1958)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1998)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1999)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 2000)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 2001)

Alfalfa, grasshoppers, bees: their relationship. A report of the field-work of the Department of entomology, summer of 1898 ... - Hunter, Samuel John, 1866 -1946 (Press of the state printer, 1899)

The American journal of science (J.D. & E.S. Dana, 1901)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1853)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1921)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1918)

The American natural history; a foundation of useful knowledge of the higher animals of North America - Hornaday, William T. (William Temple), 1854 -1937 (C. Scribner's Sons, 1914)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1867)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1874)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1877)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1889)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1913)

American ornithology, for home and school - Reed, Chester A. (Chester Albert), 1876 -1912 (Charles K. Reed], 1901)

American ornithology, for home and school - Reed, Chester A. (Chester Albert), 1876 -1912 (Charles K. Reed], 1902)

American ornithology, for home and school - Reed, Chester A. (Chester Albert), 1876 -1912 (Charles K. Reed], 1903)

American ornithology, for home and school - Reed, Chester A. (Chester Albert), 1876 -1912 (Charles K. Reed], 1904)

American ornithology : or, The natural history of the birds of the United States - Baird, Spencer Fullerton, 1823 -1887 (Porter and Coates, 1870)

American ornithology; or, the natural history of the birds of the United States - Bonaparte, Charles-Lucien, 1803 -1857 (Porter & Coates, 1878)

American ornithology, or, The natural history of the birds of the United States : illustrated with plates engraved from drawings from nature - Baird, Spencer Fullerton, 1823 -1887 (Porter & Coates, 1878)

American ornithology, or, The natural history of the birds of the United States - Bonaparte, Charles-Lucien, 1803 -1857 (Cassell, Petter & Galpin, 1880)

American ornithology; or, The natural history of the birds of the United States - Bonaparte, Charles-Lucien, 1803 -1857 (Cassell, Petter & Galpin, 1870)

American ornithology, or, The natural history of the birds of the United States - Ord, George, 1781 -1866 (Whittaker, Treacher & Arnot, 1832)

American ornithology, with notes by Jardine. To which is added a synopsis of American birds, including those described by Bonaparte, Audubon, Nuttall, and Richardson, by T.M. Brewer - Brewer, T. M. (Thomas Mayo), 1814 -1880 (H.S. Samuels, 1853)

Anales científicos paraguayos - Bertoni, Moisés S. (1901)

Anales de la Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (La Sociedad, 1878)

Anales del Instituto Médico Nacional - Instituto Médico Nacional (Mexico) (1894)

Anales del Museo Nacional de Buenos Aires - Museo Nacional de Buenos Aires. (Impr. de Juan A. Alsina, 1895)

Anales del Museo Nacional de México - Museo Nacional de México. (El Museo, 1877)

Animal and human conduct - Ritter, William Emerson, 1856 -1944 (G. Allen & Unwin, ltd, 1928)

Animal forms; a text-book of zoology - Jordan, David Starr, 1851 -1931 (D. Appleton, 1902)

The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy - Carpenter, William Benjamin, 1813 -1885 (Wm. S. Orr and Co., Amen Corner, Paternoster Row, 1849)

The animal kingdom : arranged after its organization; forming a natural history of animals, and an introduction to comparative anatomy - Carpenter, William Benjamin, 1813 -1885 (H.G. Bohn, 1863)

Animal life; a first book of zoölogy - Jordan, David Starr, 1851 -1931 (D.Appleton and Company, 1900)

Animal life; a first book of zoölogy - Jordan, David Starr, 1851 -1931 (D. Appleton and company, 1900)

Animal life; a first book of zoölogy - Jordan, David Starr, 1851 -1931 (D. Appleton and company, 1902)

Animal life in the Yosemite; an account of the mammals, birds, reptiles, and amphibians in a cross-section of the Sierra Nevada - Grinnell, Joseph, 1877 -1939 (University of California Press, 1924)

Animal studies - Jordan, David Starr, 1851 -1931 (1903)

Animal studies; a text-book of elementary zoology for use in high schools and colleges - Jordan, David Starr, 1851 -1931 (D. Appleton and company, 1903)

Animalia vertebrata : Aves classis II - Museo civico di storia naturale di Milano. (the Museo, 1847)

Animals; a text-book of zoology - Jordan, David Starr, 1851 -1931 (D. Appleton, 1907)

Animate creation; popular edition of "Our living world" a natural history - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Animate creation; popular edition of "Our Living World" a natural history - Brehm, Alfred Edmund, 1829 -1884 (S. Hess, 1898)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1888)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1889)

Annales des sciences naturelles Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1854)

Annales des sciences naturelles Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1859)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1858)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1910)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1916)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1922)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1928)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1934)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1946)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1982)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1867)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1870)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1874)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1953)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1979)

Annotated bibliographies on selected bird species inhabiting the California desert - Thelander, Carl G. ([S.l, 1979)

Annotated list of the Avery bird collection in the Alabama Museum of Natural History (Geological Survey Museum) - Avery, Mary E. (1921)

Annotated list of the Avery bird collection in the Alabama museum of natural history (Geological survey museum) - Geological Survey of Alabama. (1921)

Annotated list of the birds of Michigan / c by Morris Gibbs - Coues, Elliott, 1842 -1899 (Dept. of the Interior, U.S. Geological and Geographical Survey of the Territories, 1879, 1879)

Annotated list of the birds of Point Pelee - Taverner, P. A. (Percy Algernon), 1875 -1947 (1908)

Annual report - New York (State). Forest, Fish; Game Commission. (The Commission, 1901)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1877)

Annual report - New York State Museum. (University of the State of New York, 1907)

Annual report - New York State Museum. (University of the State of New York, 1914)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1917)

Annual report - Entomological Society of Ontario. (The Society, 1891)

Annual report of the Board of Commissioners of the Central Park - New York (N.Y.). Board of Commissioners of the Central Park. ([Board of Commissioners of the Central Park], 1868)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1861)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1862)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1877)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1889)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1890)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1891)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1892)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1893)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1897)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1901)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1902)

Annual report of the Missouri State Board of Agriculture - Missouri. State Board of Agriculture. (Missouri State Board of Agriculture, 1909)

Annual report of the Nebraska State Horticultural Society - Nebraska State Horticultural Society. (The Society, 1896)

Annual report of the New Jersey State Museum - Smith, John Bernhard, 1858 -1912 (MacCrellish & Quigley, State Printers, 1903)

Annual report of the Ohio State Academy of Science - Ohio Academy of Science. (The Academy, 1901)

Annual report of the Quebec Society for the Protection of Plants from Insects and Fungous Diseases - Société de Québec pour la protection des plantes contre les insectes et les plantes parasites. (The Society, 1909)

Annual report of the Regents - New York State Museum. (J.B. Lyon, State Printer, 1889)

Annual report of the Regents - New York State Museum. (J.B. Lyon, State Printer, 1899)

Annual report of the Regents - New York State Museum. (J.B. Lyon, State Printer, 1908)

Annual Report of the Regents of the University on the condition of the State Cabinet of Natural History, with catalogues of the same - New York State Museum. (The University, 1865)

Annual report of the Secretary of the Massachusetts Board of Agriculture - Massachusetts. State Board of Agriculture. (W. White, 1863)

Annual report of the Secretary of the State Board of Agriculture of the State of Michigan - Michigan State College. Agricultural Experiment Station. (The Board, 1862)

Annual report of the secretary of the State Pomological Society of Michigan - State Pomological Society of Michigan. (The Society, 1879)

Annual report of the State Horticultural Society of Missouri - Missouri State Horticultural Society. (The Society, 1892)

Annual report on the noxious, beneficial and other insects of the State of Missouri - Riley, Charles V. (Charles Valentine), 1843 -1895 (Ellwood Kirby, 1873)

Annual reports - Academy of Natural Sciences of Philadelphia. (The Academy], 1875)