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United States. Bureau of Agricultural Engineering

Drainage and irrigation publications of the Bureau of Agicultural Egineering, U.S. Dept. of Agriculture
Drainage and irrigation publications of the Bureau of Agicultural Egineering, U.S. Dept. of Agriculture
United States. Bureau of Agricultural Engineering
Report of 20 years research, 1913-1933
Report of 20 years research, 1913-1933
United States. Bureau of Agricultural Engineering
European observations on American cotton packaging
European observations on American cotton packaging
United States. Bureau of Agricultural Engineering
Results of surveys on research in the uses of electricity in the dairy and poultry industries
Results of surveys on research in the uses of electricity in the dairy and poultry industries
United States. Bureau of Agricultural Engineering
Air cooled apple storage
Air cooled apple storage
United States. Bureau of Agricultural Engineering
Latest results of engineering experiments at the soil erosion experiment station
Latest results of engineering experiments at the soil erosion experiment station
United States. Bureau of Agricultural Engineering