APA (7th ed.) Citation

Lewis, G. E., & Vaughn, P. P. (1965). Early Permian vertebrates from the Cutler Formation of the Placerville area, Colorado. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Lewis, G. Edward, and Peter Paul Vaughn. Early Permian Vertebrates from the Cutler Formation of the Placerville Area, Colorado. Washington: U.S. Govt. Print. Off, 1965.

MLA (9th ed.) Citation

Lewis, G. Edward, and Peter Paul Vaughn. Early Permian Vertebrates from the Cutler Formation of the Placerville Area, Colorado. U.S. Govt. Print. Off, 1965.