APA (7. basım) Alıntı

Arnold, R. A. (2019). Economics (Thirteenth edition.). Cengage.

Chicago Style (17. basım) Atıf

Arnold, Roger A. Economics. Thirteenth edition. Boston, MA: Cengage, 2019.

MLA (9th ed.) Atıf

Arnold, Roger A. Economics. Thirteenth edition. Cengage, 2019.