APA (7th ed.) Citation

Harrington, K., & Duncan, B. (2008). Soil survey of Okanogan National Forest area, Washington. U.S. Dept. of Agriculture, Natural Resources Conservation Service : U.S. Dept. of Agriculture, Natural Forest Service ; Washington State University.

Chicago Style (17th ed.) Citation

Harrington, Keith, and Brad Duncan. Soil Survey of Okanogan National Forest Area, Washington. [Washington, D.C.?] : [Pullman, Wash.?]: U.S. Dept. of Agriculture, Natural Resources Conservation Service : U.S. Dept. of Agriculture, Natural Forest Service ; Washington State University, 2008.

MLA (9th ed.) Citation

Harrington, Keith, and Brad Duncan. Soil Survey of Okanogan National Forest Area, Washington. U.S. Dept. of Agriculture, Natural Resources Conservation Service : U.S. Dept. of Agriculture, Natural Forest Service ; Washington State University, 2008.