APA način citiranja

Krugman, P. (1991). Geography and trade. Leuven, Belgium: Leuven University Press.

Čikaški stil citiranja

Krugman, Paul. Geography and Trade. Leuven, Belgium: Leuven University Press, 1991.

MLA način citiranja

Krugman, Paul. Geography and Trade. Leuven, Belgium: Leuven University Press, 1991.

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