Helpman, E. (2011). Understanding global trade. Belknap Press of Harvard University Press.
Chicago Style (17th ed.) CitationHelpman, Elhanan. Understanding Global Trade. Cambridge, Mass: Belknap Press of Harvard University Press, 2011.
MLA citiranjeHelpman, Elhanan. Understanding Global Trade. Belknap Press of Harvard University Press, 2011.
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