APA (7th ed.) Zitazioa

Williams, S. (1998). Tourism gcography. Routledge.

Chicago Style (17th ed.) Zitazioa

Williams, Stephen. Tourism Gcography. London: Routledge, 1998.

MLA (9th ed.) Zitazioa

Williams, Stephen. Tourism Gcography. Routledge, 1998.