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The First 100 Years of the United States Department of Agriculture
出版Centennial Committee, U.S. Department of Agriculture, 1963
URLhttp://books.google.com.hk/books?id=arFZFxCOqFoC&hl=&source=gbs_api
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註釋Commemorative volume recounting the historical evolution of agricultural administration in the USA since the establishment of the department of agriculture in 1862 - covers agricultural research activities, the promotion of agricultural mechanization, the administration of war-time food production, protection of agricultural incomes, etc., and includes biographical notes on the chief administrators.