Donaldson, N. C. (1992). Soil survey of Pend Oreille County area, Washington. Soil Conservation Service.
Chicago Style (17th ed.) CitationDonaldson, Norman C. Soil Survey of Pend Oreille County Area, Washington. [Washington, D.C.?]: Soil Conservation Service, 1992.
MLA (9th ed.) CitationDonaldson, Norman C. Soil Survey of Pend Oreille County Area, Washington. Soil Conservation Service, 1992.
Warning: These citations may not always be 100% accurate.