APA (7th ed.) Zitazioa
Eagles, P. F. J., & McCool, S. F. (2002). Tourism in national parks and protected areas: Planning and management. CABI Pub..
Chicago Style (17th ed.) Zitazioa
Eagles, Paul F. J., eta Stephen F. McCool. Tourism in National Parks and Protected Areas: Planning and Management. New York: CABI Pub., 2002.
MLA (9th ed.) Zitazioa
Eagles, Paul F. J., eta Stephen F. McCool. Tourism in National Parks and Protected Areas: Planning and Management. CABI Pub., 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.