APA (7th ed.) Citation

Gelderman, F. W., University of Arizona. Agricultural Experiment Station, & United States. Soil Conservation Service. (1972). Soil survey of Tucson-Avra Valley area, Arizona. U.S. Soil Conservation Service ;[for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Chicago Style (17th ed.) Citation

Gelderman, Frederick W., University of Arizona. Agricultural Experiment Station, and United States. Soil Conservation Service. Soil Survey of Tucson-Avra Valley Area, Arizona. Washington]: U.S. Soil Conservation Service ;[for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1972.

MLA (8th ed.) Citation

Gelderman, Frederick W., et al. Soil Survey of Tucson-Avra Valley Area, Arizona. U.S. Soil Conservation Service ;[for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1972.