Markusen, J. R.; Melvin, J. R.; Kaempfer, W. H.; Maskus, K. E. (1995). International Trade: Theory and Evidence. McGraw-Hill.
Per aprire la risorsa fai click su Markusen, J. R.; Melvin, J. R.; Kaempfer, W. H.; Maskus, K. E. (1995). International Trade: Theory and Evidence. McGraw-Hill.