Cita APA (7th ed.)

Samuelson, P. A., & Nordhaus, W. D. (2010). Economics (19th ed., international ed.). McGraw-Hill/Irwin.

Cita Chicago (17th ed.)

Samuelson, Paul Anthony, i William D. Nordhaus. Economics. 19th ed., international ed. Boston: McGraw-Hill/Irwin, 2010.

Cita MLA (9th ed.)

Samuelson, Paul Anthony, i William D. Nordhaus. Economics. 19th ed., international ed. McGraw-Hill/Irwin, 2010.