Cita APA (7a ed.)

O'SULLIVAN, A., & O'Sullivan Arthur & Sheffrin Steven M. (2006). Economics: Principles and Tools (4th ed.). Pearson Prentice Hasll.

Cita Chicago Style (17a ed.)

O'SULLIVAN, ARTHUR, y O'Sullivan Arthur & Sheffrin Steven M. Economics: Principles and Tools. 4th ed. New York: Pearson Prentice Hasll, 2006.

Cita MLA (9a ed.)

O'SULLIVAN, ARTHUR, y O'Sullivan Arthur & Sheffrin Steven M. Economics: Principles and Tools. 4th ed. Pearson Prentice Hasll, 2006.