APA (7th ed.) Zitazioa
Dale, A., & Hill, S. B. (2001). At the edge: Sustainable development in the 21st century. UBC Press.
Chicago Style (17th ed.) Zitazioa
Dale, Ann, eta Stuart B. Hill. At the Edge: Sustainable Development in the 21st Century. Vancouver: UBC Press, 2001.
MLA (9th ed.) Zitazioa
Dale, Ann, eta Stuart B. Hill. At the Edge: Sustainable Development in the 21st Century. UBC Press, 2001.
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