00453nam a2200181Ia 450000500170000000800410001704100100005808200230006811000100009124500680010126000270016930000110019665000130020765000130022065100120023394200090024599900170025420260814105658.0260814t1990    xx            000 0 und d  acanje  aBIB/04.01.01/04494  aILDIS 0aEl código de minería : (su rol en la estrategia del sector)  aLa Paz :bILDIS,c1990  a47 pb  a CODIGOS  a MINERIA  aBOLIVIA  tMJCh  c17502d17502