Laudon, Kenneth C. Management information systems : managing the digital firm / Kenneth C. Laudon, Jane P. Laudon. - 9th ed. - Upper Saddle River, NJ : Pearson/Prentice Hall, 2006 [1427]. - 641 p. : col. ill. ; 28 cm. Includes bibliographical references and index. ISBN: 0131538411 Subjects--Topical Terms: Management information systems. Dewey Class. No.: 658.4038011 / L K M