Soybeans, cowpeas, and velvetbeans, by states, 1924-53 : acreage, yield, production, price, value. - United States. Crop Reporting Board (Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Marketing Service, Crop Reporting Board, 1957)
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Keywords: Soybean -- United States -- Statistics; Cowpea -- United States -- Statistics; Velvet-bean -- Statistics