00479nam a2200157Ia 4500001001100000005001700011008004300028020002500071245008500096260003100181300001600212650002500228650002100253830003200274999001500306000001034420251012174512.0  941125t19721972enka          000 0 eng d  z333113977 : (broch.)10aCost-benefit analysis :btheory and practicecAjit K. Dasgupta and D.W. Pearce.   aLondonbMacmillancc1972.   a270 p.bil-04aBem estar economica.04aCusto-beneficio. 0aMacmillan student editions.  c4871d4871