TY - BOOK AU - O'Brien,James A. TI - Introduction to information systems SN - 0-07-289042-8 AV - HF5548.2 .O27 2005 PY - 2005/// CY - Boston PB - McGraw-Hill KW - Business KW - Data processing KW - Management KW - Management information systems KW - Electronic commerce N1 - Includes bibliographical references and index ER -