APA (7th ed.) Zitazioa

(1994). Population, economic development, and the environment. 0.U.Pr.

Chicago Style (17th ed.) Zitazioa

Population, Economic Development, and the Environment. Oxford: 0.U.Pr, 1994.

MLA (9th ed.) Zitazioa

Population, Economic Development, and the Environment. 0.U.Pr, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.