Dyfyniad APA

Upton, M. (1996). Economic of Tropical Farming systems. Cambridge University Press.

Dyfyniad Arddull Chicago

Upton, Martin. Economic of Tropical Farming Systems. Cambridge: Cambridge University Press, 1996.

Dyfyniad MLA

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

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