Cita APA (7a ed.)

Walkup, R. P., & McKee, S. L. (2005). Selling to anyone over the phone. AMACOM.

Cita Chicago Style (17a ed.)

Walkup, Renee P., y Sandra L. McKee. Selling to Anyone over the Phone. New York: AMACOM, 2005.

Cita MLA (8a ed.)

Walkup, Renee P., y Sandra L. McKee. Selling to Anyone over the Phone. AMACOM, 2005.