APA (7th ed.) Citation

Winters, S. S. (1963). Supai formation (Permian) of eastern Arizona. [Geological Society of America].

Chicago Style (17th ed.) Citation

Winters, Stephen S. Supai Formation (Permian) of Eastern Arizona. [New York?]: [Geological Society of America], 1963.

MLA (9th ed.) Citation

Winters, Stephen S. Supai Formation (Permian) of Eastern Arizona. [Geological Society of America], 1963.