Cita APA (7th ed.)

SCHILLER, B. R., TANSEY, M. M., & ZIEGLER, L. (1989). Study guide for the microeconomy today.-- Ed.4. McGraw-Hill.

Cita Chicago (17th ed.)

SCHILLER, Bradley R., Michael M. TANSEY, i Lawrence ZIEGLER. Study Guide for the Microeconomy Today.-- Ed.4. New York: McGraw-Hill, 1989.

Cita MLA (9th ed.)

SCHILLER, Bradley R., et al. Study Guide for the Microeconomy Today.-- Ed.4. McGraw-Hill, 1989.