OBrien, James A. Management information systems : managing information technology in the networked enterprise / James A. OBrien - 4th ed. - Boston : Irwin/McGraw-Hill, c1999. - xxv,700 p. : ill. ; 25 cm. ISBN: 0072906111 LCCN: Subjects--Topical Terms: ManagementInformation systemsComputer networks LC Class. No.: T58.6 / .O38 1999