Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Samuelson, Paul Anthony, i William D. Nordhaus. Economics. 17th ed. Boston, Mass.: McGraw-Hill, 2001.

Cita MLA (8th ed.)

Samuelson, Paul Anthony, i William D. Nordhaus. Economics. 17th ed. McGraw-Hill, 2001.