APA (7th ed.) Citation

Hartman, G. W. (1977). Soil survey of Maricopa County, Arizona, central part. Dept. of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

Hartman, George W. Soil Survey of Maricopa County, Arizona, Central Part. Washington: Dept. of Agriculture, Soil Conservation Service, 1977.

MLA (9th ed.) Citation

Hartman, George W. Soil Survey of Maricopa County, Arizona, Central Part. Dept. of Agriculture, Soil Conservation Service, 1977.