APA-Zitierstil (7. Ausg.)

Lenfesty, C. D. (1980). Soil survey of Okanogan County Area, Washington. The Service.

Chicago-Zitierstil (17. Ausg.)

Lenfesty, Charles D. Soil Survey of Okanogan County Area, Washington. [Washington, D.C.]: The Service, 1980.

MLA-Zitierstil (9. Ausg.)

Lenfesty, Charles D. Soil Survey of Okanogan County Area, Washington. The Service, 1980.