Cita APA (7a ed.)

Frank, R. H., Bernanke, B., & Johnston, L. (2009). Principles of economics (Brief edition.). McGraw-Hill/Irwin.

Cita Chicago Style (17a ed.)

Frank, Robert H., Ben Bernanke, y Louis Johnston. Principles of Economics. Brief edition. Boston: McGraw-Hill/Irwin, 2009.

Cita MLA (9a ed.)

Frank, Robert H., et al. Principles of Economics. Brief edition. McGraw-Hill/Irwin, 2009.