Laudon, Kenneth C. Management information systems : managing the digital firm / Kenneth C. Laudon, Jane P. Laudon. - 9th ed. - New Delhi : Prentice-Hall of India Private Limited, c2006. - xxx, 121 p. : ill. ; 23 cm. Includes index. ISBN: 8120329082 Subjects--Topical Terms: Management information systems. Dewey Class. No.: 658.4038011