Tapp, A. (2012). Principles of Direct and Database Marketing: A Digital Orientation (4th.). Pearson.
Cita Chicago (17th ed.)Tapp, Alan. Principles of Direct and Database Marketing: A Digital Orientation. 4th. Noida: Pearson, 2012.
Cita MLA (9th ed.)Tapp, Alan. Principles of Direct and Database Marketing: A Digital Orientation. 4th. Pearson, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.