TY - BOOK AU - O'Brien,James A. TI - Introduction to information systems : essentials for the e-business enterprise SN - 0072472642 U1 - 658.4038 19 PY - 2003/// CY - Boston PB - McGraw-Hill / Irwin KW - Information systems KW - Spines KW - E-business; Management - Data processing; Business- Data processing N2 - Business ER -