Gaya APA

Dittmer, P, R., Griffin, G, G. (1980). Principles Of Food Beverage And Labor Cost Control: for hotel And Restaurans (Ed. 2). America: CBI Publishing Company.

Gaya MLA

Dittmer, Paul, R.., Griffin, Gerald, G.. "Principles Of Food Beverage And Labor Cost Control: for hotel And Restaurans". Ed. 2 America: CBI Publishing Company, 1980. Text.