Citazione Stile APA (7a Edizione)

Upton, M. (1996). The economics of tropical farming systems. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Upton, Martin. The Economics of Tropical Farming Systems. Cambridge ; New York: Cambridge University Press, 1996.

Citatione MLA (9a ed.)

Upton, Martin. The Economics of Tropical Farming Systems. Cambridge University Press, 1996.