Belsky, S. (2012). Marketing Ideas Happen. Penguin.
Cita Chicago (17th ed.)Belsky, Scott. Marketing Ideas Happen. New York: Penguin, 2012.
Cita MLA (9th ed.)Belsky, Scott. Marketing Ideas Happen. Penguin, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.