Gaya APA

DITTMER, P, R., GRIFFIN, G, G. (1984). Principle of Food, Beverage & Labor Cost Controls: for hotels and restaurants (ed. 3). New York: Van Nostrand Reinhold.

Gaya MLA

DITTMER, Paul, R.., GRIFFIN, Gerald, G.. "Principle of Food, Beverage & Labor Cost Controls: for hotels and restaurants". ed. 3 New York: Van Nostrand Reinhold, 1984. Text.