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Possible improvements to the generalized system of preferences
Davenport, Michael W. S., (1994)
Generalised system of preferences : rules of origin
(1971)
The generalized system of preferences and the multilateral trade negotiations : study by the UNCTAD secretariat
(1978)
The political economy of international economic comparisons
Roy, Donald J., (1989)
Size and wealth in perspective : their effect on economic structure and poverty
Roy, Donald J., (1987)