(2009). Profitable direct mail appeals: Planning, implementing and maximizing results (2nd edition.). Stevenson, Inc.
Chicago-Zitierstil (17. Ausg.)Profitable Direct Mail Appeals: Planning, Implementing and Maximizing Results. 2nd edition. Sioux City, Iowa: Stevenson, Inc, 2009.
MLA-Zitierstil (9. Ausg.)Profitable Direct Mail Appeals: Planning, Implementing and Maximizing Results. 2nd edition. Stevenson, Inc, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.