APA-referens

Pereira, H. C. (1989). Policy and practice in the management of tropical watersheds. Westview Press.

Chicago-stil citat

Pereira, H C. Policy and Practice in the Management of Tropical Watersheds. Colorado: Westview Press, 1989.

MLA-referens

Pereira, H C. Policy and Practice in the Management of Tropical Watersheds. Westview Press, 1989.