Cramer, G. L., & Jensen, C. W. (1994). Agricultural economics and agribusiness (6th ed.). Wiley.
Dyfyniad Arddull ChicagoCramer, Gail L., and Clarence W. Jensen. Agricultural Economics and Agribusiness. 6th ed. New York: Wiley, 1994.
Dyfyniad MLACramer, Gail L., and Clarence W. Jensen. Agricultural Economics and Agribusiness. 6th ed. Wiley, 1994.
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