Citazione APA

Cook, R. A., Yale,Laura J, & Marqua,Joseph J. (2006). Tourism: The business of travel (3rd ed.). Pearson.

Stile di citazione Chicago

Cook, Roy A., Yale,Laura J, e Marqua,Joseph J. Tourism: The Business of Travel. 3rd ed. New Delhi: Pearson, 2006.

Citazione MLA

Cook, Roy A., et al. Tourism: The Business of Travel. 3rd ed. Pearson, 2006.