00513nam a2200145   4500001000500000005001700005008004100022035000300063041000700066050001900073110006700092245011000159260008900269300000900358224720230404125719.0060907n2002    dr                  spa      aEN14aCD UNESCO 0061  aUnited Nations Educational, Science  and Cultural Organization1 aComunication & Information :bprogrames /cUnited Nations Educational, Science  and Cultural Organization  aParis :bUnited Nations Educational, Science  and Cultural Organization,c2002        ap.v.