Cita APA (7a ed.)
Kearl, J. (1993). Principles of Economics. D.C.Heath and Co..
Cita Chicago Style (17a ed.)
Kearl, James. Principles of Economics. Massachusetts: D.C.Heath and Co., 1993.
Cita MLA (9a ed.)
Kearl, James. Principles of Economics. D.C.Heath and Co., 1993.
Precaución: Estas citas no son 100% exactas.