APA

(1997). Intensified systems of farming in the tropics and subtropics. Washington, D.C: World Bank.

Chicago

1997. Intensified systems of farming in the tropics and subtropics. Washington, D.C: World Bank.

Harvard

(1997). Intensified systems of farming in the tropics and subtropics. Washington, D.C: World Bank.

MLA

Intensified systems of farming in the tropics and subtropics. Washington, D.C: World Bank. 1997.