APA (7th ed.) Citation

Billingsley, G. H. (1987). Geology and Geomorphology of the Southwestern Moenkopi Plateau and Southern Ward Terrace, Arizona. United States Government Printing Office.

Chicago Style (17th ed.) Citation

Billingsley, George H. Geology and Geomorphology of the Southwestern Moenkopi Plateau and Southern Ward Terrace, Arizona. Washington, DC: United States Government Printing Office, 1987.

MLA (9th ed.) Citation

Billingsley, George H. Geology and Geomorphology of the Southwestern Moenkopi Plateau and Southern Ward Terrace, Arizona. United States Government Printing Office, 1987.