APA (7th ed.) Citation

DeWall, A. A. (2003). Soil survey of Navajo County Area, Arizona, central part. Natural Resources Conservation Service.

Chicago Style (17th ed.) Citation

DeWall, Alfred A. Soil Survey of Navajo County Area, Arizona, Central Part. [Washington, D.C.?]: Natural Resources Conservation Service, 2003.

MLA (9th ed.) Citation

DeWall, Alfred A. Soil Survey of Navajo County Area, Arizona, Central Part. Natural Resources Conservation Service, 2003.

Warning: These citations may not always be 100% accurate.