Cita APA (7th ed.)

Parkin, M. (2012). Economics (10th ed.). Addison-Wesley.

Cita Chicago (17th ed.)

Parkin, Michael. Economics. 10th ed. Boston: Addison-Wesley, 2012.

Cita MLA (8th ed.)

Parkin, Michael. Economics. 10th ed. Addison-Wesley, 2012.