Vallen, Gary K. Check-in check-out : managing hotel operations / Gary K. Vallen, Jerome J. Vallen. - Eighth edition. - Singapore : Pearson Education South Asia Pte Ltd, c2009. - xvi, 604 pages : illustrations ; 25 cm. Includes index. ISBN: 9780132059671 0132059673 LCCN: 2008003900 Subjects--Topical Terms: Hotel management. LC Class. No.: TX911.3.M27 / V352 2009 Dewey Class. No.: 647.94/068