APA (7th ed.) Zitazioa
(2004). Exploring sustainable development: Geographical perspectives. Earthscan.
Chicago Style (17th ed.) Zitazioa
Exploring Sustainable Development: Geographical Perspectives. London: Earthscan, 2004.
MLA (9th ed.) Zitazioa
Exploring Sustainable Development: Geographical Perspectives. Earthscan, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.