APA (7th ed.) Citation

Stephenson, L. W. (1955). Owl Creek (Upper Cretaceous) fossils from Crowleys Ridge, Southeastern Missouri. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Stephenson, Lloyd William. Owl Creek (Upper Cretaceous) Fossils from Crowleys Ridge, Southeastern Missouri. Washington: U.S. Govt. Print. Off, 1955.

MLA (9th ed.) Citation

Stephenson, Lloyd William. Owl Creek (Upper Cretaceous) Fossils from Crowleys Ridge, Southeastern Missouri. U.S. Govt. Print. Off, 1955.