Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1913)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1919)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1929)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1930)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell, Petter & Galpin, 1876)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1896)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1891)

Catalogue of Canadian plants ... - Kindberg, N. C. (Nils Conrad), 1832 -1910 (1883)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1872)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1914)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1916)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1908)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1933)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1940)

Catalogue of the lizards in the British museum (Natural history) - Boulenger, George Albert 1858 -1937 (Printed by order of the Trustees, 1885)

Catalogue of the lizards in the British museum (Natural history) - Boulenger, George Albert 1858 -1937 (Printed by order of the Trustees, 1887)

Catalogue of the neotropical Squamata - Peters, James Arthur, 1922 -1972 (Smithsonian Institution Press, 1970)

Catalogue of the Specimens of lizards in the collection of the British museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1845)

Centralblatt für Physiologie - Physiologische Gesellschaft zu Berlin. (Toeplitz & Deuticke, 1897)

Centralblatt für Physiologie - Physiologische Gesellschaft zu Berlin. (Toeplitz & Deuticke, 1900)

Centralblatt für Physiologie - Physiologische Gesellschaft zu Berlin. (Toeplitz & Deuticke, 1908)

The Century dictionary : an encyclopedic lexicon of the English language: prepared under the superintendence of William Dwight Whitney - Whitney, William Dwight, 1827 -1894 (Century Co, 1889)

Chamber's encyclopaedia, a dictionary of universal knowledge (Chambers, 1902)

Chapters on the natural history of the United States - Shufeldt, Robert Wilson 1850 -1934 (Studer Bros, 1897)

Chapters on the natural history of the United States - Shufeldt, Robert Wilson 1850 -1934 (Studer Brothers, 1900)

A check list of North American amphibians and reptiles - Stejneger, Leonhard, 1851 -1943 (Harvard University Press, 1917)

A check list of North American amphibians and reptiles - Stejneger, Leonhard, 1851 -1943 (Harvard University Press ; [etc., etc.], 1923)

A check list of North American amphibians and reptiles - Stejneger, Leonhard, 1851 -1943 (Harvard University Press, 1933)

Check-list of North American Batrachia and Reptilia with a systematic list of the higher groups and an essay on geographical distribution, based on the specimens contained in the U. S. National Museum - Cope, E. D. (Edward Drinker), 1840 -1897 (G.P.O, 1875)

Checklist of CITES Species (1998)

Checklist of CITES Species and Annotated CITES Appendices and Reservations - Inskipp, Tim (CITES Secretariat, UNEP-WCMC, 2005)