444605 Krugman, P. R. (1997). Development, geography, and economic theory. Cambridge : The MIT Press.
芝加哥风格引文444605 Krugman, Paul R. Development, Geography, and Economic Theory. Cambridge : The MIT Press, 1997.
MLA引文444605 Krugman, Paul R. Development, Geography, and Economic Theory. Cambridge : The MIT Press, 1997.
警告：这些引文格式不一定是100％准确.