Geological Survey (U.S.) & Sherrod, D. R. (1989). Mineral resources of the Trigo Mountains Wilderness Study Area, La Paz County, Arizona. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and David R. Sherrod. Mineral Resources of the Trigo Mountains Wilderness Study Area, La Paz County, Arizona. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1989.
MLA (9th ed.) CitationGeological Survey (U.S.) and David R. Sherrod. Mineral Resources of the Trigo Mountains Wilderness Study Area, La Paz County, Arizona. Dept. of the Interior, U.S. Geological Survey, 1989.
Warning: These citations may not always be 100% accurate.