Lua APA (7ú heag.)
ebrary, Inc, Moore, D. P., & Doherty, A. G. (2011). United States travel and tourism industry. Nova Science Publishers, Inc..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Danielle P. Moore, agus Allison G. Doherty. United States Travel and Tourism Industry. Hauppauge, N.Y.: Nova Science Publishers, Inc., 2011.
Lua MLA (9ú heag.)
ebrary, Inc, et al. United States Travel and Tourism Industry. Nova Science Publishers, Inc., 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.