"Planned and conducted by a subcommittee of the Agricultural Committee of the Greater Des Moines Chamber of Commerce."
"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 Agricultural and Economic Development."
The New era in world agricultural trade : perspectives for the Prairies and the Great Plains : proceedings of a seminar jointly sponsored by the Department of Agricultural Economics, Universities of Minnesota and Manitoba in Winnipeg on November 13-15, 1979
Papers of a conference sponsored by the University of Manitoba Faculty of Agriculture and Home Economics and the Iowa State University Center for Agricultural and Economic Development