Cita APA (7th ed.)
Powers, T. (1990). Marketing hospitality (1a. ed.). Wiley Service Management Series.
Cita Chicago (17th ed.)
Powers, Tom. Marketing Hospitality. 1a. ed. USA: Wiley Service Management Series, 1990.
Cita MLA (9th ed.)
Powers, Tom. Marketing Hospitality. 1a. ed. Wiley Service Management Series, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.