00301nam a2200097Ia 4500080001700000100001900017245010600036260002700142300001500169583001900184  a09.01.01 K19  aKaser, Michael  aTrends in trade and economic cooperation among countries having different economic and social systems  bUNCTADaGenevaCHc1987  aiii, 31 p.  c3/7/00kM2LMGR