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Federal Legislation, Rulings, and Regulations Affecting the State Agricultural Experiment Stations, Compiled in the Office of Experiment Stations, Agricultural Research Service, U.S. Department of Agriculture

Etats-Unis. Office of experiment stations

出版	U.S. Government Printing Office, 1954
URL	http://books.google.com.hk/books?id=Y6IgYAAACAAJ&hl=&source=gbs_api