APA-referens

Clawson, M. (1971). Policy directions for U.S. agriculture; long-range choices in farming and rural living. Allied.

Chicago-stil citat

Clawson, Marion. Policy Directions for U.S. Agriculture; Long-range Choices in Farming and Rural Living. Bombay: Allied, 1971.

MLA-referens

Clawson, Marion. Policy Directions for U.S. Agriculture; Long-range Choices in Farming and Rural Living. Allied, 1971.