Williams, S. (2009). Tourism geography: A new synthesis. New York: Routledge.
Chicago Style aipamenaWilliams, Stephen. Tourism Geography: A New Synthesis. New York: Routledge, 2009.
MLA aipamenaWilliams, Stephen. Tourism Geography: A New Synthesis. New York: Routledge, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.