Washington Agricultural Experiment Station & Gilkeson, R. A. (1958). Soil map of the Columbia Basin project--Washington. Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington.
Cita Chicago Style (17a ed.)Washington Agricultural Experiment Station y Raymond Allen Gilkeson. Soil Map of the Columbia Basin Project--Washington. [Pullman, Wash.?: Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington, 1958.
Cita MLA (8a ed.)Washington Agricultural Experiment Station y Raymond Allen Gilkeson. Soil Map of the Columbia Basin Project--Washington. Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington, 1958.