Citazione Stile APA (7a Edizione)

Krugman, P. R., Obstfeld, M., & Melitz, M. J. (2012). International economics: Theory & policy (9th ed., global ed.). Pearson Education South Asia Pte.

Citazione stile Chigago Style (17a edizione)

Krugman, Paul R., Maurice Obstfeld, e Marc J. Melitz. International Economics: Theory & Policy. 9th ed., global ed. Singapore: Pearson Education South Asia Pte, 2012.

Citatione MLA (9a ed.)

Krugman, Paul R., et al. International Economics: Theory & Policy. 9th ed., global ed. Pearson Education South Asia Pte, 2012.