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AUTHORS (1-6 之 6)
Ross, W. Arthur.
1 Building electrical equipment for the farm, Ross, W. Arthur. Washington, U.S. Govt. print. off., 1941. 1941 評級: 複本
2 Conserving farm lands : planning for soil-erosion control, water conservation and efficient land use Dale, Tom, 1899- Washington : U.S. Govt. Print. Off., 1940. 1940 評級: 複本
3 Directing vocational agriculture day-school students in developing their farming programs. Procedure Ross, W. Arthur. Washington, U.S. Govt. Print. Off., 1944. 1944 評級: 複本
4 Farm forestry; timber farming including woods management and forest tree planting, Ross, W. Arthur. Washington, U.S. Govt. print. off., 1939. 1939 評級: 複本
5 Interpretive science and related information in vocational agriculture; effective utilization of sci Ross, W. Arthur. Washington, U.S. Govt. print. off., 1936. 1936 評級: 複本
6 Suggestions for teaching the job of controlling bunt (stinking smut) of wheat in vocational agricult United States. Federal Board for Vocational Education. Washington, D.C. : The Board, 1932. 1932 評級: 複本
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Building electrical equipment for the farm,