United States. Soil Conservation Service & Virginia Polytechnic Institute and State University. (1986). Soil survey of Powhatan County, Virginia. The Service.
Chicago Style (17th ed.) CitationUnited States. Soil Conservation Service and Virginia Polytechnic Institute and State University. Soil Survey of Powhatan County, Virginia. [Washington, D.C.?]: The Service, 1986.
MLA (9th ed.) CitationUnited States. Soil Conservation Service and Virginia Polytechnic Institute and State University. Soil Survey of Powhatan County, Virginia. The Service, 1986.
Warning: These citations may not always be 100% accurate.