Tapp, A. (2012). Principles of Direct and Database Marketing (4th.). Pearson.
Chicago Style (17. basım) AtıfTapp, Alan. Principles of Direct and Database Marketing. 4th. Pearson, 2012.
MLA (9th ed.) AtıfTapp, Alan. Principles of Direct and Database Marketing. 4th. Pearson, 2012.
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