APA (7. basım) Alıntı

Olson, E. C. (1962). Late Permian terrestrial vertebrates, U.S.A. and U.S.S.R. American Philosophical Society.

Chicago Style (17. basım) Atıf

Olson, Everett Claire. Late Permian Terrestrial Vertebrates, U.S.A. and U.S.S.R. Philadelphia: American Philosophical Society, 1962.

MLA (9th ed.) Atıf

Olson, Everett Claire. Late Permian Terrestrial Vertebrates, U.S.A. and U.S.S.R. American Philosophical Society, 1962.