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International trade and investment
Root, Franklin R., (1978)
International economics
Grubel, Herbert G., (1981)
Salvatore, Dominick, (1983)
Global economic involvement : a synthesis of modern international economics
Gray, Henry Peter, (1999)
Trade and investment in a globalising world : essays in honour of H. Peter Gray
Narula, Rajneesh, (2001)
A generalized theory of international trade
Gray, Henry Peter, (1976)