Upton, M. (1996). The economics of tropical farming systems. Cambridge University Press.
Chicagoスタイル(17版)引用形式Upton, Martin. The Economics of Tropical Farming Systems. Cambridge ; New York: Cambridge University Press, 1996.
MLA(9版)引用形式Upton, Martin. The Economics of Tropical Farming Systems. Cambridge University Press, 1996.
警告: この引用は必ずしも正確ではありません.