Smith, V. L., & Brent, M. (2001). Hosts and guests revisited: Tourism issues of the 21st century. Cognizant Communication.
Lua i Stíl Chicago (17ú heag.)Smith, Valene L., agus Maryann Brent. Hosts and Guests Revisited: Tourism Issues of the 21st Century. New York: Cognizant Communication, 2001.
Lua MLA (9ú heag.)Smith, Valene L., agus Maryann Brent. Hosts and Guests Revisited: Tourism Issues of the 21st Century. Cognizant Communication, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.