APA-referens (7:e uppl.)

Romer, A. S. (1966). Paleontology (3rd ed.). The University of Chicago Press.

Chicago-referens (17:e uppl.)

Romer, Alfred Sherwood. Paleontology. 3rd ed. Chicago and London: The University of Chicago Press, 1966.

MLA-referens (9:e uppl.)

Romer, Alfred Sherwood. Paleontology. 3rd ed. The University of Chicago Press, 1966.