Catalogus mammalium tam viventium quam fossilium - Trouessart, E.-L. (Edouard-Louis), 1842 -1927 (Friedländer, 1898)

Catalogus mammalium tam viventium quam fossilium a doctore E.-L. Trouessart - Trouessart, E.-L. (Edouard-Louis), 1842 -1927 (R. Friedländer & sohn, 1898)

Causeries scientifiques - Société zoologique de France. (1900)

Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology - Andrews, Roy Chapman, 1884 -1960 (American Museum of Natural History, 1926)

Centralblatt für Physiologie - Physiologische Gesellschaft zu Berlin. (Toeplitz & Deuticke, 1892)

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)

Cestodes - Braun, Max, 1850 -1930 (C.F. Winter, 1894)

Check-list of the species of fishes known from the Philippine Archipelago - Jordan, David Starr, 1851 -1931 (Bureau of printing, 1917)

Checklist of mammals listed in the CITES appendices (1995)

Checklist of Palaearctic and Indian mammals 1758 to 1946 - Ellerman, J. R. (John Reeves), 1909 -1973 (BM(NH), 1966)

Checklist of Palaearctic and Indian mammals 1758 to 1946 - Ellerman, J. R. (John Reeves), 1909 -1973 (BM(NH), 1951)