APA (7th ed.) Citation

(1941). Some little-known fossil lizards from Oligocene of Wyoming. [s.n.].

Chicago Style (17th ed.) Citation

Some Little-known Fossil Lizards from Oligocene of Wyoming. [Washington]: [s.n.], 1941.

MLA (9th ed.) Citation

Some Little-known Fossil Lizards from Oligocene of Wyoming. [s.n.], 1941.