APA (7th ed.) Citation

Geological Survey (U.S.) & Keith, W. J. (1989). Mineral resources of the Sierra Estrella Wilderness study area, Maricopa County, Arizona. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and William J. Keith. Mineral Resources of the Sierra Estrella Wilderness Study Area, Maricopa County, Arizona. Washington: Dept. of the Interior, U.S. Geological Survey, 1989.

MLA (9th ed.) Citation

Geological Survey (U.S.) and William J. Keith. Mineral Resources of the Sierra Estrella Wilderness Study Area, Maricopa County, Arizona. Dept. of the Interior, U.S. Geological Survey, 1989.