Gaya APA

Dittmer, P, R., Desmond, K, I, J. (2009). Principles of food, beverage, and labor cost controls (9th ed.). New Jersey: John Wiley & Sons..

Gaya MLA

Dittmer, Paul, R.., Desmond, Keefe, III,, J.. "Principles of food, beverage, and labor cost controls". 9th ed. New Jersey: John Wiley & Sons., 2009. BUKU.