APA (7th ed.) Zitazioa
Honey, M. (2002). Ecotourism & certification: Setting standards in practice. Island Press.
Chicago Style (17th ed.) Zitazioa
Honey, Martha. Ecotourism & Certification: Setting Standards in Practice. Washington, DC: Island Press, 2002.
MLA (9th ed.) Zitazioa
Honey, Martha. Ecotourism & Certification: Setting Standards in Practice. Island Press, 2002.
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