Cita APA (7a ed.)

Dittmer, P., & Keefe, J. D. (2009). Study guide to accompany principles of food, beverage, and labor cost controls (9th ed.). John Wiley & Sons.

Cita Chicago Style (17a ed.)

Dittmer, Paul, y J. Desmond Keefe. Study Guide to Accompany Principles of Food, Beverage, and Labor Cost Controls. 9th ed. Hoboken, New Jersey: John Wiley & Sons, 2009.

Cita MLA (9a ed.)

Dittmer, Paul, y J. Desmond Keefe. Study Guide to Accompany Principles of Food, Beverage, and Labor Cost Controls. 9th ed. John Wiley & Sons, 2009.