Gray, William S., 1936- Hotel and motel management and operations / William S. Gray, Salv atore C. Liguori. - 4th ed. - Upper Saddle River, N.J. : PH/PTR, c2003. - xiv, 412 p. : ill. ; 25 cm. 001042116 (IDA) ISBN: 0130990892 LCCN: 2002-002152 Subjects--Topical Terms: Hotel housekeeping --Management.------ Dewey Class. No.: 647.94068