Frank, R. H., & Bernanke, B. S. (2013). Principles of economics (5th ed.). গপএৎধ-িঐরষষ/ওৎরিহ.
Cita Chicago (17th ed.)Frank, Robert H., i Ben S. Bernanke. Principles of Economics. 5th ed. New York: গপএৎধ-িঐরষষ/ওৎরিহ, 2013.
Cita MLA (9th ed.)Frank, Robert H., i Ben S. Bernanke. Principles of Economics. 5th ed. গপএৎধ-িঐরষষ/ওৎরিহ, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.