Cita APA (7a ed.)
Tapp, A. (2005). Principles of direct and database marketing (3. ed.). Prentice Hall.
Cita Chicago Style (17a ed.)
Tapp, Alan. Principles of Direct and Database Marketing. 3. ed. Harlow: Prentice Hall, 2005.
Cita MLA (9a ed.)
Tapp, Alan. Principles of Direct and Database Marketing. 3. ed. Prentice Hall, 2005.
Precaución: Estas citas no son 100% exactas.