Cita APA (7th ed.)

Parkin, M. (1998). Economics (4th ed.). Addison-Wesley.

Cita Chicago (17th ed.)

Parkin, Michael. Economics. 4th ed. Reading, Mass.: Addison-Wesley, 1998.

Cita MLA (8th ed.)

Parkin, Michael. Economics. 4th ed. Addison-Wesley, 1998.