"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."
During the independent existence of Manitoba Pool Elevators, the Manitoba Co-operator, published by the Manitoba Co-operative Conference Ltd., was the official organ of the cooperative movement in the province. The sub-series consists of issues of The Manitoba Co-operator from 1931-1936 and 1943-2001.