O'Brien, James A. Introduction to Information Systems : Essentials for the Internetworked Enterprise / James A. O' Bricn - 9th ed - Boston : McGraw-Hill, 2000 - 510 p : ill ISBN: 0071169733 1,050 Subjects--Topical Terms: Bussiness--Data Processing.Management--Data Processing. LC Class. No.: HF5548.2 / O23 I5 2000