Miller,Roger L. (1997). Economics today (9th ed.). Harper Collins.
Cita Chicago Style (17a ed.)Miller,Roger L. Economics Today. 9th ed. New York: Harper Collins, 1997.
Cita MLA (9a ed.)Miller,Roger L. Economics Today. 9th ed. Harper Collins, 1997.
Precaución: Estas citas no son 100% exactas.