000 004660000a22001690004500
650 1 4 _9159421
_aPOLITICA AMBIENTAL
650 1 4 _92092
_aPROTECCION AMBIENTAL
650 1 4 _98
_aCONSERVACION DE LOS RECURSOS
593 _a16-12-1994
596 _aI
245 1 0 _aDIVISIONAL WORKING PAPER
260 _bWorld Bank, Environmental Department
362 1 _a19-
590 _bWorld Bank, Environmental Department
_cWashington, D.C.
_gE.U.A.
942 _cCR
999 _c130618
_d130618