Cita APA (7a ed.)
Walkup, R. P., & McKee, S. L. (2006). 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, 2006.
Cita MLA (9a ed.)
Walkup, Renee P., y Sandra L. McKee. Selling to Anyone over the Phone. AMACOM, 2006.
Precaución: Estas citas no son 100% exactas.