APA (7th ed.) Citation

Cooper, J. R. (1960). Some geologic features of the Pima mining district, Pima County, Arizona. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cooper, John R. Some Geologic Features of the Pima Mining District, Pima County, Arizona. Washington, D.C.: U.S. Department of the Interior, U.S. Geological Survey, 1960.

MLA (9th ed.) Citation

Cooper, John R. Some Geologic Features of the Pima Mining District, Pima County, Arizona. U.S. Department of the Interior, U.S. Geological Survey, 1960.