Παραπομπή APA
Ritchie, B. J. R., & Goeldner, C. R. (1994). Travel, Tourism, and Hospitality Research: A handbook for Managers and Researchers (2nd edition.). New York: John Wiley & Sons Inc..
Παραπομπή Chicago StyleRitchie, Brent J. R., and Charles R. Goeldner. Travel, Tourism, and Hospitality Research: A Handbook for Managers and Researchers. 2nd edition. New York: John Wiley & Sons Inc., 1994.
Παραπομπή MLARitchie, Brent J. R., and Charles R. Goeldner. Travel, Tourism, and Hospitality Research: A Handbook for Managers and Researchers. 2nd edition. New York: John Wiley & Sons Inc., 1994.
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