Gaya APA

Ninemeier, J, D., Institute, A, H, &, M, A, E. (1984). Principles of food and beverage operations . Michigan: Educational Institute of AHMA.

Gaya MLA

Ninemeier, Jack, D.., Institute, American, Hotel, &, Motel, Association., Educational. "Principles of food and beverage operations". Michigan: Educational Institute of AHMA, 1984. BUKU.