• 1 Memorial Library
• 1 Steenbock Library
• 1 WHS State Archives Preservation Facility

• 1 Agriculture
• 1 Agriculture, Cooperative
• 1 Central Co-operative Wholesale (U.S.)
• 1 Cooperative societies
• 1 Economic aspects
• 1 Food supply
• 1 Grain trade

• 1 Central Co-operative Wholesale (U.S.)
• 1 Iowa State University. World Food Institute

• 2 English

• 1 Statistics

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