-
By: Rose, Dean H. (Dean Humboldt), - Bratley, C. O. (Cyril Oliver), - Pentzer, W. T. (Wilbur Tibbils),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1939Volume: no.340Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
-
By: Barger, W. R. - Pentzer, W. T. (Wilbur Tibbils), - United States. Bureau of Plant Industry, Soils, and Agricultural Engineering.Edition:Publication info: Fresno, Calif, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering, 1948Volume: no.197Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: