Cita APA (7th ed.)

Cook, R. A., Yale, L. J., & Marqua, J. J. (2002). Tourism: The business of travel (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Cook, Roy A., Laura J. Yale, i Joseph J. Marqua. Tourism: The Business of Travel. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 2002.

Cita MLA (9th ed.)

Cook, Roy A., et al. Tourism: The Business of Travel. 2nd ed. Prentice Hall, 2002.