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By: Hawkins, Lon A. (Lon Adrian), - Barger, W. R.Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926Volume: no.1368 (1926)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Barger, W. R. - Hawkins, Lon A. (Lon Adrian),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926Volume: no.1367 (1926)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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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:
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By: Barger, W. R. - United States. Bureau of Plant Industry, Soils, and Agricultural Engineering.Edition:Publication info: [Beltsville, Md.?], U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering, [1951?]Volume: no.244Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: