APA (7th ed.) Zitazioa

(1997). Economic values and the environment in the developing world. Edward Elgar.

Chicago Style (17th ed.) Zitazioa

Economic Values and the Environment in the Developing World. Cheltenham: Edward Elgar, 1997.

MLA (9th ed.) Zitazioa

Economic Values and the Environment in the Developing World. Edward Elgar, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.