Cita APA (7th ed.)

Mankiw, N. G. (2021). Principles of economics (Ninth edition.). Cengage Learning, Inc..

Cita Chicago (17th ed.)

Mankiw, N. Gregory. Principles of Economics. Ninth edition. Boston, MA: Cengage Learning, Inc., 2021.

Cita MLA (8th ed.)

Mankiw, N. Gregory. Principles of Economics. Ninth edition. Cengage Learning, Inc., 2021.