APA (7th ed.) Citation

Billingsley, G. H., & Priest, S. S. (2013). Geologic map of the Glen Canyon Dam, 30ʹ x 60ʹ quadrangle, Coconino County, northern Arizona. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Billingsley, George H., and Susan S. Priest. Geologic Map of the Glen Canyon Dam, 30ʹ X 60ʹ Quadrangle, Coconino County, Northern Arizona. Reston, Va.: U.S. Department of the Interior, U.S. Geological Survey, 2013.

MLA (9th ed.) Citation

Billingsley, George H., and Susan S. Priest. Geologic Map of the Glen Canyon Dam, 30ʹ X 60ʹ Quadrangle, Coconino County, Northern Arizona. U.S. Department of the Interior, U.S. Geological Survey, 2013.