Gaya APA

Keiser, J. et al (2008). Analyzing and controlling foodservice costs : a managerial and technological approach (5th ed.). New Jersey: Pearson Education, Inc..

Gaya MLA

Keiser, James. et al. "Analyzing and controlling foodservice costs : a managerial and technological approach". 5th ed. New Jersey: Pearson Education, Inc., 2008. BUKU.