Cita APA (7a ed.)

Donaldson, N. C., & Giese, L. D. (1968). Soil survey, Spokane County, Washington. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Cita Chicago Style (17a ed.)

Donaldson, Norman C., y Laurence D. Giese. Soil Survey, Spokane County, Washington. Washington]: Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1968.

Cita MLA (8a ed.)

Donaldson, Norman C., y Laurence D. Giese. Soil Survey, Spokane County, Washington. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1968.

Precaución: Estas citas no son 100% exactas.