APA

Colbert E. H., . (211934). Chalicotheres from Mongolia and China in the American Museum. New York: American Museum of Natural History.

Chicago

Colbert Edwin H, . 211934. Chalicotheres from Mongolia and China in the American Museum. New York: American Museum of Natural History.

Harvard

Colbert E. H., . (211934). Chalicotheres from Mongolia and China in the American Museum. New York: American Museum of Natural History.

MLA

Colbert Edwin H, . Chalicotheres from Mongolia and China in the American Museum. New York: American Museum of Natural History. 211934.