APA (7th ed.) Citation

Krugman, P. R. (1995). Development, geography and economic theory. MIT Press.

Chicago Style (17th ed.) Citation

Krugman, Paul R. Development, Geography and Economic Theory. Cambridge, etc.: MIT Press, 1995.

MLA (9th ed.) Citation

Krugman, Paul R. Development, Geography and Economic Theory. MIT Press, 1995.