OBrien, James A. Management information systems : managing information technology in the internetworked enterprise / James A. OBrien - 4th ed. - Boston : Irwin/McGraw-Hill, c1999. - xxv,700 p. : ill. ; 25 cm. Includes index. ISBN: 0072906111 LCCN: Subjects--Topical Terms: ManagementInformation systemsComputer networks LC Class. No.: HF5548 / .32 1999 Dewey Class. No.: 658.4038011 / O13m