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What the Agricultural Experiment Station is Doing for Missouri for the Year July 1, 1919 to June 30, 1920
Frederick Blackmar MumfordUniversity of Missouri. Agricultural Experiment Station
出版University of Missouri, College of Agriculture, Agricultural Experiment Station, 1921
URLhttp://books.google.com.hk/books?id=P7k1zgEACAAJ&hl=&source=gbs_api