Citazione Stile APA (7a Edizione)

Powers, T. F., & Barrows, C. W. (2001). Introduction to the hospitality industry (5th ed.). Wiley.

Citazione stile Chigago Style (17a edizione)

Powers, Thomas F., e Clayton W. Barrows. Introduction to the Hospitality Industry. 5th ed. New York: Wiley, 2001.

Citatione MLA (9a ed.)

Powers, Thomas F., e Clayton W. Barrows. Introduction to the Hospitality Industry. 5th ed. Wiley, 2001.