Sethi, P. (1999). Hand book of hospitality and tourism. Anmol Publishers.
Lua i Stíl Chicago (17ú heag.)Sethi, Praveen. Hand Book of Hospitality and Tourism. Delhi: Anmol Publishers, 1999.
Lua MLA (9ú heag.)Sethi, Praveen. Hand Book of Hospitality and Tourism. Anmol Publishers, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.