APA-referens

Martin Upton. (1996). The economics of tropical farming systems. Cambridge University press.

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.