Cita APA (7th ed.)
Frank, R. H., & Bernanke, B. S. (2004). Principles of economics (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Frank, Robert H., i Ben S. Bernanke. Principles of Economics. 2nd ed. Boston, Mass.: McGraw-Hill, 2004.
Cita MLA (9th ed.)
Frank, Robert H., i Ben S. Bernanke. Principles of Economics. 2nd ed. McGraw-Hill, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.