Annual Graduate Education and Graduate Research Conference in Hospitality & Tourism Hilton University of Houston, Conrad N. Hilton College, University of Houston. (2004). Proceedings of ninth Annual Graduate Education and Graduate Research Conference in Hospitality and Tourism , Januar 6-8, 2004 Hilton University of Houston , Conrad N. Hilton College, University of Houston. Hilton University of Houston.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Annual Graduate Education and Graduate Research Conference in Hospitality & Tourism Hilton University of Houston, Conrad N. Hilton College, University of Houston. Proceedings of Ninth Annual Graduate Education and Graduate Research Conference in Hospitality and Tourism , Januar 6-8, 2004 Hilton University of Houston , Conrad N. Hilton College, University of Houston. Houston, Texas: Hilton University of Houston, 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Annual Graduate Education and Graduate Research Conference in Hospitality & Tourism Hilton University of Houston, Conrad N. Hilton College, University of Houston. Proceedings of Ninth Annual Graduate Education and Graduate Research Conference in Hospitality and Tourism , Januar 6-8, 2004 Hilton University of Houston , Conrad N. Hilton College, University of Houston. Hilton University of Houston, 2004.