Style de citation APA (7e éd.)

Krugman, P. R., & Obstfeld, M. (1991). International economics: Theory and policy (2nd ed.). Harper Collins.

Style de citation Chicago (17e éd.)

Krugman, Paul R., et Maurice Obstfeld. International Economics: Theory and Policy. 2nd ed. New York: Harper Collins, 1991.

Style de citation MLA (9e éd.)

Krugman, Paul R., et Maurice Obstfeld. International Economics: Theory and Policy. 2nd ed. Harper Collins, 1991.