Citazione Stile APA (7a Edizione)

Samuelson, P. A., & Nordhaus, W. D. (2011). Economics (19th ed., international ed.). McGraw-Hill Educ. (Asia).

Citazione stile Chigago Style (17a edizione)

Samuelson, Paul Anthony, e William D. Nordhaus. Economics. 19th ed., international ed. Singapore: McGraw-Hill Educ. (Asia), 2011.

Citatione MLA (9a ed.)

Samuelson, Paul Anthony, e William D. Nordhaus. Economics. 19th ed., international ed. McGraw-Hill Educ. (Asia), 2011.