Thomas W, H. (1997). Global trade analysis: Modeling and applications. Cambridge University Press.
Tohutoru Kātū Chicago (17th ed.)Thomas W, Hertel. Global Trade Analysis: Modeling and Applications. Cambridge ; New York: Cambridge University Press, 1997.
Tohutoro MLA (9th ed.)Thomas W, Hertel. Global Trade Analysis: Modeling and Applications. Cambridge University Press, 1997.
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