Tapp,Alan. Principles of Direct and Database Marketing. A Digital Orientation. Alan Tapp - 4th ed. - New Delhi Pearson 2012 - 517p. Paper Cover ISBN: 9788131764411 ISSN: 9788131764411 Subjects--Personal Names: Tapp,Alan. LC Class. No.: 658.84 Dewey Class. No.: 658.84