Vallen, Gary K. 2014 Check-in check-out / Managing Hotel Operation. Gary K. Vallen, Jerome J. Vallen. - 9 ed. - Boston : Pearson, 2014. - xv, 436 p. : ill. (some col. ) ; 29 cm. Includes bibliographical references and index. ISBN: 9781292021102 1292021101 LCCN: 2012016018 Subjects--Topical Terms: Hotel management.Motel management. LC Class. No.: TX911.3.M27 / V24 2014 Dewey Class. No.: 647.94068