Dyfyniad APA

Cramer, G. L. (1979). Agricultural economics and agribusiness. New York: John Wiley.

Dyfyniad Arddull Chicago

Cramer, Gail L. Agricultural Economics and Agribusiness. New York: John Wiley, 1979.

Dyfyniad MLA

Cramer, Gail L. Agricultural Economics and Agribusiness. New York: John Wiley, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.