APA (7th ed.) Citation

Geological Survey (U.S.), Lucchitta, I., & Suneson, N. (1994). Geologic map of the Signal quadrangle, Mohave County, Arizona. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Ivo Lucchitta, and Neil Suneson. Geologic Map of the Signal Quadrangle, Mohave County, Arizona. Reston, VA: The Survey, 1994.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Signal Quadrangle, Mohave County, Arizona. The Survey, 1994.