Heller,H Robert. International trade: Theory and empirical evidence (2.). Prentice Hall of India.
Čikaški stil citiranjaHeller,H Robert. International Trade: Theory and Empirical Evidence. 2. New Delhi: Prentice Hall of India.
MLA način citiranjaHeller,H Robert. International Trade: Theory and Empirical Evidence. 2. Prentice Hall of India.
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