Gray, W. S. (2003). Hotel and motel management and operations. New Jersey: Pearson.
Trích dẫn kiểu ChicagoGray, William S. Hotel and Motel Management and Operations. New Jersey: Pearson, 2003.
MLA引文Gray, William S. Hotel and Motel Management and Operations. New Jersey: Pearson, 2003.
警告：這些引文格式不一定是100％准確.