Cita APA (7a ed.)

Arden, R., & Tracy, B. (2006). Power of Charm. Amacom.

Cita Chicago Style (17a ed.)

Arden, Ron, y Brian Tracy. Power of Charm. Amacom, 2006.

Cita MLA (8a ed.)

Arden, Ron, y Brian Tracy. Power of Charm. Amacom, 2006.