APA Style

Dittmer, P, R., J.Desmond, K, ,. (2009). Principles of Food, Beverage, and Labor Cost Controls . America: John Wiley & Songs, INC.

MLA Style

Dittmer, Paul, R.., J.Desmond, Keefe, ,. "Principles of Food, Beverage, and Labor Cost Controls". America: John Wiley & Songs, INC, 2009. Text.