Citazione Stile APA (7a Edizione)

Sharp, A. M. (2008). Economics of social issues (18th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Sharp, Ansel M. Economics of Social Issues. 18th ed. Boston: McGraw-Hill, 2008.

Citatione MLA (9a ed.)

Sharp, Ansel M. Economics of Social Issues. 18th ed. McGraw-Hill, 2008.