Gaya APA

Ninemeier, J, D., Perdue, J. (2005). Hospitality operations : careers in the world's greatest industry . New Jersey: Pearson Education, Inc..

Gaya MLA

Ninemeier, Jack, D.., Perdue, Joe. "Hospitality operations : careers in the world's greatest industry". New Jersey: Pearson Education, Inc., 2005. BUKU.