Klein Grady. (2011). Cartoon Introduction to Economics. Hill and Wang.
Cita Chicago (17th ed.)Klein Grady. Cartoon Introduction to Economics. New York: Hill and Wang, 2011.
Cita MLA (9th ed.)Klein Grady. Cartoon Introduction to Economics. Hill and Wang, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.