"In cooperation with the United States Department of Agriculture.""August 1953."Caption title.Bibliography: p. 40.Mode of access: Internet
"July 1951.""In cooperation with the United States Department of Agriculture."Caption title.Bibliogr...
Caption title."In connection with the S.D. Agricultural Colleges, Dept. of Agriculture and Soil Phys...
"In cooperation with the Bureau of Agricultural Economics.""November, 1923."Caption title.Bibliograp...
"In cooperation with the United States Department of Agriculture.""May 1953."Caption title.Bibliogra...
"In cooperation with the United States Dept. of Agriculture."March 1953."Caption titl...
"In cooperation with the United States Department of Agriculture.""May 1951."Caption ...
"In cooperation with the United States Department of Agriculture.""June 1952."Caption title.Mode of ...
"In cooperation with the United States Department of Agriculture.""June 1951."Caption title.Mode of ...
Caption title.Cover title: Water conservation in Great Plains wheat production."August 1944."Bibliog...
"in cooperation with Bureau of Agricultural Economics, U.S. Dept. of Agriculture.""July 1944."Captio...
"U.S. Soil Conservation Service, Office of Research, and Nebraska Agricultural Experiment Station, c...
"Soil Conservation Service and Bureau of Agricultural Economics, U.S. Dept. of Agriculture, in coope...
"A contribution from Bureau of Soils."Caption title.Bibliography: p. 13-14.Mode of access: Internet
Caption title."In cooperation with the United States Department of Agriculture.""June 1953."Mode of ...
"In cooperation with United States Dept. of Agriculture.""July 1948."Caption Title.Mode of access: I...
"July 1951.""In cooperation with the United States Department of Agriculture."Caption title.Bibliogr...
Caption title."In connection with the S.D. Agricultural Colleges, Dept. of Agriculture and Soil Phys...
"In cooperation with the Bureau of Agricultural Economics.""November, 1923."Caption title.Bibliograp...
"In cooperation with the United States Department of Agriculture.""May 1953."Caption title.Bibliogra...
"In cooperation with the United States Dept. of Agriculture."March 1953."Caption titl...
"In cooperation with the United States Department of Agriculture.""May 1951."Caption ...
"In cooperation with the United States Department of Agriculture.""June 1952."Caption title.Mode of ...
"In cooperation with the United States Department of Agriculture.""June 1951."Caption title.Mode of ...
Caption title.Cover title: Water conservation in Great Plains wheat production."August 1944."Bibliog...
"in cooperation with Bureau of Agricultural Economics, U.S. Dept. of Agriculture.""July 1944."Captio...
"U.S. Soil Conservation Service, Office of Research, and Nebraska Agricultural Experiment Station, c...
"Soil Conservation Service and Bureau of Agricultural Economics, U.S. Dept. of Agriculture, in coope...
"A contribution from Bureau of Soils."Caption title.Bibliography: p. 13-14.Mode of access: Internet
Caption title."In cooperation with the United States Department of Agriculture.""June 1953."Mode of ...
"In cooperation with United States Dept. of Agriculture.""July 1948."Caption Title.Mode of access: I...
"July 1951.""In cooperation with the United States Department of Agriculture."Caption title.Bibliogr...
Caption title."In connection with the S.D. Agricultural Colleges, Dept. of Agriculture and Soil Phys...
"In cooperation with the Bureau of Agricultural Economics.""November, 1923."Caption title.Bibliograp...