Clawson, M. (1971). Policy directions for U.S. agriculture; long-range choices in farming and rural living. Allied.
Dyfyniad Arddull ChicagoClawson, Marion. Policy Directions for U.S. Agriculture; Long-range Choices in Farming and Rural Living. Bombay: Allied, 1971.
Dyfyniad MLAClawson, Marion. Policy Directions for U.S. Agriculture; Long-range Choices in Farming and Rural Living. Allied, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.