01055nam0-22003251i-450-99000683857040332120040423112555.0000683857FED01000683857(Aleph)000683857FED01000683857--------d--------km-y0itay50------baitay---n---001yy<<The >>EFFECTIVENESS of international environmental agreementsa survey of existing legal instrumentsedited byPeter H. Sand.CambridgeGrotius Publ.1992.540 p. 30 cmIn testa al front.: The United Nations conference on environmen and development.Ambiente naturale - Tutela internazionale341.762Sand,Peter H.ITUNINARICAUNIMARCBK990006838570403321VII C 25429359FSPBCG 134s.i.DSIFSPBCDSIEFFECTIVENESS of international environmental agreements626266UNINA