Gaya APA

Welles, C, C, S. (1949). Bibliography of Fossil Vertebrates 1939 - 1943 . New York: The Geological Society of America.

Gaya MLA

Welles, C.L., Camp,, S.P. "Bibliography of Fossil Vertebrates 1939 - 1943". New York: The Geological Society of America, 1949. Text.