Cita APA (7a ed.)
Arnold, R. A. (2001). Economics (6th ed.). South-Western College Pub..
Cita Chicago Style (17a ed.)
Arnold, Roger A. Economics. 6th ed. Cincinnati, Ohio: South-Western College Pub., 2001.
Cita MLA (9a ed.)
Arnold, Roger A. Economics. 6th ed. South-Western College Pub., 2001.
Precaución: Estas citas no son 100% exactas.