00637nam a2200169Ia 4500082002100000100006300021245018000084260003000264300001400294500000500308690000600313700000500319952010200324964001700426921000900443999001500452  a382.061bUn58.OE  aUnited Nations Conference on Trade and Development, Geneva  aOperation and effects of the generalized system of preferences, selected studies submitted at the 5th session of the special committee on preferences Geneva 3-13 April, 1973b  aNew YorkbThe Auth.c1974  avi, 230p.  a  a   a  00104070aISIbISId1998-09-03l0o382.061 Un58.OEpDP9932r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a8126  c8126d8126