Avery, C. (1985). Soil survey of Columbia County, Arkansas. The Service.
Chicago Style (17th ed.) CitationAvery, Chris. Soil Survey of Columbia County, Arkansas. [Washington, D.C.?]: The Service, 1985.
MLA (9th ed.) CitationAvery, Chris. Soil Survey of Columbia County, Arkansas. The Service, 1985.
Warning: These citations may not always be 100% accurate.