APA (7th ed.) Zitazioa

(1999). Global aspects of the environment. Eward Elgar.

Chicago Style (17th ed.) Zitazioa

Global Aspects of the Environment. Cheltenham: Eward Elgar, 1999.

MLA (9th ed.) Zitazioa

Global Aspects of the Environment. Eward Elgar, 1999.