Cita APA (7th ed.)

Baumol, W. J. (2009). Contemporary Economics: Principles and policy. Cengage Learning.

Cita Chicago (17th ed.)

Baumol, William J. Contemporary Economics: Principles and Policy. New Delhi: Cengage Learning, 2009.

Cita MLA (9th ed.)

Baumol, William J. Contemporary Economics: Principles and Policy. Cengage Learning, 2009.