O'Brien, James A Management information systems / James A O'Brien; George M Marakas. - 7th ed. - Boston : McGraw-Hill Irwin, ©2006. - xxxi, 592 p. ; 24 cm. Includes index. ISBN: 007111629X Subjects--Topical Terms: ManagementManagement information systems Dewey Class. No.: 658.4038011 / OBM