एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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