APA (7th ed.) Citation

Beard, S. (2007). Preliminary geologic map of the Lake Mead 30ʹ X 60ʹ quadrangle, Clark County, Nevada, and Mohave County, Arizona (Version 1.0.). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Beard, Sue. Preliminary Geologic Map of the Lake Mead 30ʹ X 60ʹ Quadrangle, Clark County, Nevada, and Mohave County, Arizona. Version 1.0. Flagstaff, Ariz.: U.S. Geological Survey, 2007.

MLA (9th ed.) Citation

Beard, Sue. Preliminary Geologic Map of the Lake Mead 30ʹ X 60ʹ Quadrangle, Clark County, Nevada, and Mohave County, Arizona. Version 1.0. U.S. Geological Survey, 2007.