Cita APA (7a ed.)

Irvin B. Tucker. (2016). Economics For Today, 9th Edition (ninth edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Irvin B. Tucker. Economics For Today, 9th Edition. ninth edition. United States of America: Cengage Learning, 2016.

Cita MLA (8a ed.)

Irvin B. Tucker. Economics For Today, 9th Edition. ninth edition. Cengage Learning, 2016.