Gossling Stefan, Hall, C. . M., & Weaver, D. B. (2009). Sustainable tourism futures: Perspectives on systems, restructuring and innovations. Routledge.
Chicago Style aipamenaGossling Stefan, Colin Michael Hall, and David B. Weaver. Sustainable Tourism Futures: Perspectives on Systems, Restructuring and Innovations. New York: Routledge, 2009.
MLA aipamenaGossling Stefan, et al. Sustainable Tourism Futures: Perspectives on Systems, Restructuring and Innovations. Routledge, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.