TY - BOOK AU - Hallberg TI - All consumers are not created equal : the differential marketing strategy for brand loyalty and profits SN - 0471120049 U1 - 658.84 HAL 1995 PY - 1995/// CY - New York PB - John Wiley & Sons KW - Database marketing KW - Direct marketing KW - Data processing N1 - Includes bibliographical references and index ER -