1988 IUCN red list of threatened animals (1988)

1990 IUCN red list of threatened animals (1990)

1994 IUCN red list of threatened animals (1994)

Abhandlungen - Heidelberger Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse. (W. de Gruyter [etc.], 1922)

Abhandlungen aus dem Gebiete der Naturwissenschaften / hrsg. vom Naturwissenschaftlichen Verein in Hamburg - Naturwissenschaftlicher Verein in Hamburg. (Naturwissenschaftlicher Verein, 1848)

Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Realschul-Buchhandlung, 1827)

Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Realschul-Buchhandlung, 1852)

Abhandlungen der Mathematisch-Physikalischen Klasse der Königlich Bayerischen Akademie der Wissenschaften - Königlich Bayerische Akademie der Wissenschaften (1906)

Abhandlungen der Naturforschenden Gesellschaft zu Görlitz - Staatliches Museum für Naturkunde Görlitz. (1887)

Abhandlungen der Naturforschenden Gesellschaft zu Görlitz - Staatliches Museum für Naturkunde Görlitz. (1901)

Abhandlungen der physikalischen Klasse der Königlich-Preussischen Akademie der Wissenschaften - Königlich Preussische Akademie der Wissenschaften zu Berlin (Realschul-Buchhandlung, 1816)

Abhandlungen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen - Naturwissenschaftlicher Verein zu Bremen. (Im Selbstverlag des Naturwissenschaftlichen Vereins, 1871)

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, 1888)

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, 1916)

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

Account of an expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and '20 : by order of the Hon. J.C. Calhoun, sec'y of war: under the command of Major Stephen H. Long. From the notes of Major Long, Mr. T. Say, and other gentlemen of the exploring party - Say, Thomas, 1787 -1834 (H.C. Carey and I. Lea, 1823)

An account of the birds and mammals of the San Jacinto area of southern California with remarks upon the behavior of geographic races on the margins of their habitats - Grinnell, Joseph, 1877 -1939 (University of California Press, 1913)

An account of the mammals and birds of the lower Colorado Valley : with especial reference to the distributional problems presented - University of California, Berkeley. (University of California Press, 1914)

Acta Societatis pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica (Societas, 1920)

Acta Societatis Scientiarum Fennicae - Suomen Tiedeseura ([Suomen Tiedeseura], 1902)

Advances in herpetology and evolutionary biology : essays in honor of Ernest E. Williams - Harvard University. Museum of Comparative Zoology. (Museum of Comparative Zoology, 1983)

The advocate of veterinary reform and outlines of anatomy and physiology of the horse - Dadd, George H., 1813 -1868 (The author, 1850)

The advocate of veterinary reform and outlines of anatomy and physiology of the horse : also, a general history of the rise and progress of the veterinary science in England, with practical observations on feeding, watering, grooming, shoeing, &c. ... containing, also a veterinary dictionary, selected from the works of R. White ... with selections from the works of Youatt, Percival, and Curtis, together with ... observations on bloodletting, and the use of poisons ... - Dadd, George H., 1813 -1868 (The author, 1855)

Album der Natuur - Vries, Hugo de, 1848 -1935 (1861)

Album der Natuur - Vries, Hugo de, 1848 -1935 (1852)

Az állat-ország fölosztva alkotása szerint : alapul szolgálandó az állatok természetleirásához s bevezetésul az összehasonlitó bonctanhoz - Cuvier, Georges, baron, 1769 -1832 (A Magyar Királyi Egyetem Betuivel. A M. Acadm. költségein, 1841)

Allerlei sprechendes gefiedertes Volk : raben- oder kra¨henartige Vo¨gel [mit Einschluss der Pfeifkra¨hen oder Flo¨tenvo¨gel und der Laubenvo¨gel], Pastorvogel, Starvo¨gel, Drosseln, Kanarienvogel und Gimpel oder Dompfaff : ein Hand- und Le - Russ, Karl, 1833 -1899 (Creutzsche Verlagsbuchhandlung, 1889)

Allgemeine deutsche naturhistorische Zeitung - Gesellschaft Isis in Dresden. (R. Kuntze, 1855)

Allgemeine Fischerei-Zeitung (Landesfischereiverband Bayern [etc.], 1906)

Allgemeine naturgeschichte, als Philosophische und Humanitätswissenschaft für Naturforscher, Philosophen und das Hoher gebildete Publikum - Perty, Maximilian, 1804 -1884 (C. Fischer, 1841)

Allgemeine naturgeschichte, als Philosophische und Humanitätswissenschaft für Naturforscher, Philosophen und das Hoher gebildete Publikum - Perty, Maximilian, 1804 -1884 (C. Fischer, 1846)

Allgemeine Naturgeschichte der Parasiten : mit besonderer Berücksichtigung der bei dem Menschen schmarotzenden Arten - Leuckart, Rudolf, 1823 -1898 (C.F. Winter, 1879)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1837)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1842)

Allgemeines Polyglotten-Lexicon der Naturgeschichte mit erklaerenden Anmerkungen - Nemnich, Philipp Andreas, 1764 -1822 (Nemnich, 1793)

The American bird fancier - Browne, D. J. (Daniel Jay), 1804 -1867 (C. M. Saxton, 1850)

The American bird fancier : considered with reference to the breeding, rearing, feeding, management, and peculiarities of cage and house birds ; with remarks on their diseases and remedies ; drawn from authentic sources and personal observation - Browne, D. J. (Daniel Jay), 1804 -1867 (Published by C.M. Saxton, 1850)

The American bird fancier; considered with reference to the breeding, rearing, feeding, management, and peculiarities of cage and house birds; with remarks on their diseases and remedies; drawn from authentic sources and personal observation - Browne, D. J. (Daniel Jay), 1804 -1867 (C.M. Saxton, 1851)

The American bird fancier; or, How to breed, rear, and care for song and domestic birds : with their diseases and remedies - Browne, D. J. (Daniel Jay), 1804 -1867 (Orange Judd company, 1892)

The American bird-keeper's manual; or, Directions for the proper management of American and foreign singing birds. With particular instructions for the breeding of canary birds, and the proper treatment of their young. Together with some remarks upon the diseases to which birds are liable ... - Mann, James. (The author, and sold by Little and Brown [etc.], 1848)

American birds studied and photographed from life - Finley, William L. (William Lovell), 1876 -1953 (C. Scribner's Sons, 1907)

American birds, studied and photographed from life - Finley, William L. (William Lovell), 1876 -1953 (C. Scribner's sons, 1907)

The American farmer. A complete agricultural library, with useful facts for the household, devoted to farming in all its departments and details - Flint, Charles Louis, 1824 -1889 (R. H. Park, 1883)

The American farmer ; a complete agricultural library, with useful facts for the household, devoted to farming in all its departments and details ... - Flint, Charles Louis, 1824 -1889 (R.H. Park, 1882)

The American farmer's pictorial cyclopedia of live stock - Periam, Jonathan. (N. D. Thompson & co, 1882)

American gardening (Rural Pub. Co, 1892)

The American journal of anatomy - Wistar Institute of Anatomy; Biology. ([s.n.], 1916)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1833)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1834)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1836)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1839)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1843)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1844)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1911)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1913)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1917)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1904)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1906)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1911)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1873)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1876)

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 birds inhabiting the United States, not given by Wilson - Bonaparte, Charles-Lucien, 1803 -1857 (Carey, Lea & Carey, 1825)

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 (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; 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 - Bonaparte, Charles-Lucien, 1803 -1857 (Cassell, Petter & Galpin, 1880)

American ornithology; or, The natural history of the birds of the United States... By ALexander Wilson. With a sketch of the author's life, by George Ord, F. L. S. & c - Ord, George, 1781 -1866 (Harrison Hall, 1828)

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 : illustrated with plates, engraved and colored from original drawings from nature - Baird, Spencer Fullerton, 1823 -1887 (Porter & Coates, 1871)

American ornithology, or, The natural history of the birds of the United States : illustrated with plates engraved and colored from original drawings taken from nature - Ord, George, 1781 -1866 (Published by Bradford and Inskeep, Printed by Robert Carr, 1808)