Gaya APA

Dittmer, P, R., III, J, D, K. (2006). Principles Of Food, Beverage And Labor Cost Controls (Ed. 8). America: John Wiley Sons,Inc.

Gaya MLA

Dittmer, Paul, R.., III, J., Desmond, Keefe. "Principles Of Food, Beverage And Labor Cost Controls". Ed. 8 America: John Wiley Sons,Inc, 2006. Text.