Dittmer, P., & Keefe, J. D. (2009). Principles of food, beverage, and labor cost controls (9th ed.). Wiley.
Chicago Style (17. basım) AtıfDittmer, Paul, ve J. Desmond Keefe. Principles of Food, Beverage, and Labor Cost Controls. 9th ed. Hoboken, N.J: Wiley, 2009.
MLA (9th ed.) AtıfDittmer, Paul, ve J. Desmond Keefe. Principles of Food, Beverage, and Labor Cost Controls. 9th ed. Wiley, 2009.
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