00971nam0-22003131i-450-99000685837040332120001010000685837FED01000685837(Aleph)000685837FED0100068583720001010d--------km-y0itay50------baitay-------001yyVoluntary approaches to environmental protectionthe role of legislative threatsKathleen Segerson and Thomas J. Miceli.MilanoFondazione Eni1997.31 p.21 cmNote di lavoro della Fondazione ENI Enrico Mattei21333.717Segerson,Kathleen253400Miceli,Thomas J.ITUNINARICAUNIMARCBK990006858370403321COLLEZ. 1703 (21)30605FSPBCFSPBCVoluntary approaches to environmental protection301823UNINAGEN01