Cita APA (7a ed.)

Samuelson, P. A., & Samuelson, W. (2001). Economics (17th ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Samuelson, Paul A., y William Samuelson. Economics. 17th ed. New York: McGraw-Hill, 2001.

Cita MLA (9a ed.)

Samuelson, Paul A., y William Samuelson. Economics. 17th ed. McGraw-Hill, 2001.