Cita APA

C St J Yales. (1992). May I help you: A course for restaurant and bar staff. New York: Prentice-Hall.

Citación estilo Chicago

C St J Yales. May I Help You: A Course for Restaurant and Bar Staff. New York: Prentice-Hall, 1992.

Cita MLA

C St J Yales. May I Help You: A Course for Restaurant and Bar Staff. New York: Prentice-Hall, 1992.