Vallen, Gary K. Check-in check-out : managing hotel operations / Gary K. Vallen, Jerome J. Vallen. - 8th ed. - Upper Saddle River, N.J. : Pearson/Prentice Hall, c2009. - xvi, 604 p. : ill. (some col.), map ; 27 cm. Includes bibliographical references and index. ISBN: 9780132059671 0132059673 Subjects--Topical Terms: Hotel management.Motel management. Dewey Class. No.: 647.94068 VAL