Cita APA (7a ed.)

Tapp, A., Whitten, I., & Housden, M. (2014). Principles of direct, database and digital marketing (Fifth edition.). Pearson.

Cita Chicago Style (17a ed.)

Tapp, Alan, Ian Whitten, y Matthew Housden. Principles of Direct, Database and Digital Marketing. Fifth edition. New York: Pearson, 2014.

Cita MLA (8a ed.)

Tapp, Alan, et al. Principles of Direct, Database and Digital Marketing. Fifth edition. Pearson, 2014.