Citazione Stile APA (7a Edizione)

Krugman, P. R., & Obstfeld, M. (2006). International economics: Theory and policy (7th ed.). Addison-Wesley.

Citazione stile Chigago Style (17a edizione)

Krugman, Paul R., e Maurice Obstfeld. International Economics: Theory and Policy. 7th ed. Boston, MA: Addison-Wesley, 2006.

Citatione MLA (8a ed.)

Krugman, Paul R., e Maurice Obstfeld. International Economics: Theory and Policy. 7th ed. Addison-Wesley, 2006.