APA(7版)引用形式

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

Chicagoスタイル(17版)引用形式

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

MLA(9版)引用形式

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

警告: この引用は必ずしも正確ではありません.