APA (7th ed.) Citation

Krugman, P. R. (1988). International economics: Theory and policy. Scott, Foresman and Company.

Chicago Style (17th ed.) Citation

Krugman, Paul R. International Economics: Theory and Policy. Boston: Scott, Foresman and Company, 1988.

MLA (9th ed.) Citation

Krugman, Paul R. International Economics: Theory and Policy. Scott, Foresman and Company, 1988.