McKay, M. (2009). Messages. AMACOM(American Management Association).
Cita Chicago Style (17a ed.)McKay, Matthew. Messages. New York: AMACOM(American Management Association), 2009.
Cita MLA (9a ed.)McKay, Matthew. Messages. AMACOM(American Management Association), 2009.
Precaución: Estas citas no son 100% exactas.