TY - BOOK AU - O'Brien, James A., AU - Marakas, George M., ED - ED - ED - ED - SN - 007111629x (paperback) SN - 2 PY - 2006///;copyright 2006.46 CY - Boston PB - McGraw-Hill/ Irwin KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Management information systems N1 - Includes bibliographical references and indexes; 5; Professional ER -