Cita APA (7a ed.)

Samuelson, P. A., & Nordhaus, W. D. (2005). Economics (18th ed.). McGraw-Hill/Irwin.

Cita Chicago Style (17a ed.)

Samuelson, Paul A., y William D. Nordhaus. Economics. 18th ed. Boston: McGraw-Hill/Irwin, 2005.

Cita MLA (9a ed.)

Samuelson, Paul A., y William D. Nordhaus. Economics. 18th ed. McGraw-Hill/Irwin, 2005.