Davidoff, P. (1995). Tourism geography. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Davidoff, Philip. Tourism Geography. New jersey: Prentice Hall, 1995.
Lua MLA (9ú heag.)Davidoff, Philip. Tourism Geography. Prentice Hall, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.