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Robert Bailey Elwood

1 cilt bulundu.

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Poultry industryChanges in technology and labor requirements in livestock productionGeorge A. Sallee, Arthur Armington Lewis, Robert B. Elwood, William Anton Newman, Robert Bailey Elwood, United States. Bureau of Agricultural Economics, United States. Work Projects Administration, National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.)

Changes in technology and labor requirements in livestock production

George A. Sallee, Arthur Armington Lewis, Robert B. Elwood, William Anton Newman, Robert Bailey Elwood, United States. Bureau of Agricultural Economics, United States. Work Projects Administration, National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.) · Yayınevi bilinmiyor

57 sayfa · 1941

Poultry industry