Clawson, M. (1971). Policy directions for U.S. agriculture; long-range choices in farming and rural living. Allied.
Citação norma ChicagoClawson, Marion. Policy Directions for U.S. Agriculture; Long-range Choices in Farming and Rural Living. Bombay: Allied, 1971.
Citação norma MLAClawson, Marion. Policy Directions for U.S. Agriculture; Long-range Choices in Farming and Rural Living. Allied, 1971.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.