APA সাইটেশন

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

শিকাগো স্টাইলে সাইটেশন

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

এমএলএ সাইটেশন

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