"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."
Papers given at a conference held Sept. 30 - Oct. 3, 1963, at Ames, Iowa, sponsored by the Center for Agricultural and Economic Development, Iowa State University
The diffusion of Grain-marketing cooperatives in southern Manitoba from 1906 to 1960, with particular emphasis on the periods 1912-17 and 1925-40 / : by Geffrey E. Katz
