by D.S. Jennings ... [and others] ; United States Department of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils and Agricultural Engineering in cooperation with the Utah Agricultural Experiment Station
by H.P. Ulrich ... [and others] ; United States Department of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering in cooperation with the Purdue University Agricultural Experiment Station
by R. Earl Storie ... [and others] ; United States Department of Agriculture, Bureau of Plant Industry, Soils, and Agricultural Engineering in cooperation with the University of California Agricultural Experiment Station
by W. H. Buckhannan, in charge ... [and others] ; United States Department of Agriculture in cooperation with the Oklahoma Agricultural Experiment Station
by E. H. Templin ... [and others] ; United States Department of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering ; in cooperation with the Texas Agricultural Experiment Station
Date
[1948]
Series
U.S. Bureau of Plant Industry, Soils, and Agricultural Engineering. [Soil survey report] ; series 1939 ; no. 4