International agricultural trade and market development policy in the 1990sJohn W. Helmuth, Don F. Hadwiger · First published 1993Open the Tome
1988 World Food Conference proceedingsJohn W. Helmuth · First published 1989 · Latest edition 1990Open the Tome
An analysis of the futures trading activity in live and feeder cattle contracts of large (reporting) traders on the Chicago Mercantile ExchangeJohn W. Helmuth · First published 1980Open the Tome
Farmers' use of forward contracts and futures marketsAllen B. Paul, Richard G. Heifner, John W. Helmuth, United States. Department of Agriculture. Economic Research Service · First published 1976Open the Tome
