REVELL, R., & STOTT, C. (1991). Five star english for the hotel and tourist industry. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)REVELL, Rod, agus Chris STOTT. Five Star English for the Hotel and Tourist Industry. Oxford: Oxford University Press, 1991.
Lua MLA (9ú heag.)REVELL, Rod, agus Chris STOTT. Five Star English for the Hotel and Tourist Industry. Oxford University Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.