Upton, M. (1996). The economics of tropical farming systems. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Upton, Martin. The Economics of Tropical Farming Systems. Cambridge ; New York: Cambridge University Press, 1996.
MLA način citiranja (9. izdanje)Upton, Martin. The Economics of Tropical Farming Systems. Cambridge University Press, 1996.
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