APA (7th ed.) Zitazioa
ebrary, Inc, Moore, D. P., & Doherty, A. G. (2011). United States travel and tourism industry. Nova Science Publishers, Inc..
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Danielle P. Moore, eta Allison G. Doherty. United States Travel and Tourism Industry. Hauppauge, N.Y.: Nova Science Publishers, Inc., 2011.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. United States Travel and Tourism Industry. Nova Science Publishers, Inc., 2011.
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