Vallen,Gary K. Check-in check-out Managing hotel operations / [[Book] :] Gary K.Vallen ,Jerome J.Vallen. - London : PEASON, 2009. - xvi,604p : ill ; 24cm. Includes Index All age. ISBN: 9780135036303 0135036305 Subjects--Topical Terms: Hotel operations. Dewey Class. No.: 647.94 National Library of Medicine Call No.: 647.94 / V C