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willis b combs

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Grain grading primer

Grain grading primer

Willis B. Combs · United States Department of Agriculture

61 sayfa · 1940

Grain / Grading

GradingOutlines for 4-H club grain grading demonstrationsWillis B. Combs

Outlines for 4-H club grain grading demonstrations

Willis B. Combs · U.S. Dept. of Agriculture

37 sayfa · 1954

4-H clubs / Grain / Grading

Agricultural processingAgricultural processing pamphletsGeorge P. Bodnar, John Herron Cox, Harold E. Earp, W. M. Hurst, R. C. Miller, E. A. Back, R. T. Cotton, H. D. Young, Dorothy Nickerson, Willis B. Combs, W. P. Carroll, F. G. Smith, Raymond L. Spangler, United States. Bureau of Agricultural Economics, United States. Department of Agriculture. National Agricultural Library.

Agricultural processing pamphlets

George P. Bodnar, John Herron Cox, Harold E. Earp, W. M. Hurst, R. C. Miller, E. A. Back, R. T. Cotton, H. D. Young, Dorothy Nickerson, Willis B. Combs, W. P. Carroll, , · Yayınevi bilinmiyor

Raymond L. Spangler,

United States. Bureau of Agricultural Economics,

United States. Department of Agriculture. National Agricultural Library.

Sayfa sayısı yok · 1920

Crops / Harvesting / Agricultural processing