Gaya APA

Dittmer, P, R., Griffin, G, G. (1984). Principles Of Food Beverage & Labor Cost Control : For Hotel And Restaurants (Ed. 3). America: Van Nostrand Reinhold Company.

Gaya MLA

Dittmer, Paul, R.., Griffin, Gerald, G.. "Principles Of Food Beverage & Labor Cost Control : For Hotel And Restaurants". Ed. 3 America: Van Nostrand Reinhold Company, 1984. Text.