APA (7th ed.) Zitazioa

Dewees, P. A. (1993). Trees, land and labor. The World Bank.

Chicago Style (17th ed.) Zitazioa

Dewees, Peter A. Trees, Land and Labor. Washington, D.C.: The World Bank, 1993.

MLA (9th ed.) Zitazioa

Dewees, Peter A. Trees, Land and Labor. The World Bank, 1993.