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 der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1911)

Abhandlungen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen - Naturwissenschaftlicher Verein zu Bremen. (Im Selbstverlag des Naturwissenschaftlichen Vereins, 1898)

Abhandlungen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen - Naturwissenschaftlicher Verein zu Bremen. (Im Selbstverlag des Naturwissenschaftlichen Vereins, 1900)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1890)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1894)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1896)

Actes de la Société linnéenne de Bordeaux - Société Linnéenne de Bordeaux. (The Society, 1869)

Aggiunte alla ornitologia della Papuasia e delle Molucche - Salvadori, Tommaso, 1835 -1923 (Ermanno Loescher, 1889)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1935)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1976)

Album der Natuur - Vries, Hugo de, 1848 -1935 (1860)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1896)

Anales de la Universidad de Chile - Universidad de Chile. (1859)

An analytical index to the works of the late John Gould - Sharpe, Richard Bowdler, 1847 -1909 (H. Sotheran, 1893)

Anatomical and zoological researches: comprising an account of the zoological results of the two expeditions to western Yunnan in 1868 and 1875; and a monograph of the two cetacean genera, Platanista and Orcella - Anderson, John, 1833 -1900 (B. Quaritch, 1878)

The animals of New Zealand; an account of the dominion's air-breathing vertebrates - Hutton, Frederick Wollaston, 1836 -1905 (Whitcombe and Tombs, 1909)

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, 1887)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1893)

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

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1874)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1875)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1877)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1870)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1889)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1890)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1840)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1841)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1842)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1843)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1845)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1856)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1846)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1855)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1857)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1870)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1882)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1894)

Annals of natural history (R. and J.E. Taylor, 1841)

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, 1908)

Annual report of the New Jersey State Museum - Smith, John Bernhard, 1858 -1912 (MacCrellish & Quigley, State Printers, 1911)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1909)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1928)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1929)

Appendix to A list of the genera of birds - Gray, George Robert, 1808 -1872 (Richard and John E. Taylor, 1842)

Arboretum et fruticetum britannicum, or : The trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described ... - Loudon, J. C. (John Claudius), 1783 -1843 (J.C. Loudon, 1844)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1912)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1913)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1915)

Archiv für Naturgeschichte (Nicolai, 1841)

Archiv für Naturgeschichte (Nicolai, 1844)

Archiv für Naturgeschichte (Nicolai, 1846)

Archiv für Naturgeschichte (Nicolai, 1847)

Archiv für Naturgeschichte (Nicolai, 1852)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1923)

Archiv für Naturgeschichte (Nicolai, 1854)

Archiv für Naturgeschichte (Nicolai, 1858)

Archiv für Naturgeschichte (Nicolai, 1862)

Archiv für Naturgeschichte (Nicolai, 1868)

Archiv für Naturgeschichte (Nicolai, 1870)

Archiv für Naturgeschichte (Nicolai, 1872)

Archiv für Naturgeschichte (Nicolai, 1873)

Archiv für Naturgeschichte (Nicolai, 1877)

Archiv für Naturgeschichte (Nicolai, 1878)

Archiv für Naturgeschichte (Nicolai, 1879)

Archiv für Naturgeschichte (Nicolai, 1880)

Archiv für Naturgeschichte (Nicolai, 1882)

Archiv für Naturgeschichte (Nicolai, 1884)

Archiv für Naturgeschichte (Nicolai, 1885)

Archiv für Naturgeschichte (Nicolai, 1891)

Archiv für Naturgeschichte (Nicolai, 1893)

Archiv für Naturgeschichte (Nicolai, 1894)

Archiv für Naturgeschichte (Nicolai, 1895)

Archiv für Naturgeschichte (Nicolai, 1900)

Archiv für Naturgeschichte (Nicolai, 1901)

Archiv für Naturgeschichte (Nicolai, 1902)

Archiv für Naturgeschichte (Nicolai, 1907)

Archiv für Naturgeschichte (Nicolai, 1908)