Cita APA (7th ed.)

Arnold, R. A., & Arnold, D. R. (2023). Economics (14th ed.). Cengage Learning.

Cita Chicago (17th ed.)

Arnold, Roger A., i Daniel R. Arnold. Economics. 14th ed. Boston, MA: Cengage Learning, 2023.

Cita MLA (9th ed.)

Arnold, Roger A., i Daniel R. Arnold. Economics. 14th ed. Cengage Learning, 2023.