00382nam a2200121Ia 450000500170000008000180001710000200003524500730005526000290012830000130015752000690017058300210023920260716044025.0  a16.02.02 S574  aSigam, Claudine  aExtractive industries : optimizing value retention in host countries  bUNCTADaNew YorkUSc2012  av, 46 p.  aFocuses on natural resources management in developing countries.  c6/26/12kSANDRAW