00822nam0-22002891i-450-99000372729040332120001010000372729FED01000372729(Aleph)000372729FED0100037272920000920d1965----km-y0itay50------baitay-------001yyQuality of the environmentan economic approach to some problems in using land,water, and airO.Herfindahl , A. KneeseU.S.A.RFF196596p.22cmHerfindahl,Orris C.Kneese,Allen V.ITUNINARICAUNIMARCBK990003727290403321Q2-Q4.235615DECTSDECTSQuality of the environment501190UNINAING01