APA (7th ed.) Citation

United States. Soil Conservation Service, Virginia Polytechnic Institute and State University, & United States. Forest Service. (1991). Soil survey of Shenandoah County, Virginia. U.S. Dept. of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

United States. Soil Conservation Service, Virginia Polytechnic Institute and State University, and United States. Forest Service. Soil Survey of Shenandoah County, Virginia. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1991.

MLA (9th ed.) Citation

United States. Soil Conservation Service, et al. Soil Survey of Shenandoah County, Virginia. U.S. Dept. of Agriculture, Soil Conservation Service, 1991.