"Published under the auspices of the Agricultural Committee of the Greater Des Moines Chamber of Commerce with the cooperation of the Iowa State University Center for Agriculture and Economic Development."
The Grain Growers' record, 1906 to 1943 : an abridged history of Grain Growers' Grain Company, 1906 to 1917, Alberta Farmers Co-operative Elevator Company, 1913 to 1917 [and] United Grain Growers Limited, 1917 to 1943