00330nam a2200109Ia 450000500170000008000170001710000190003424501060005326000270015930000150018658300190020120260716043038.0  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