00269nam a2200109Ia 4500082002100000100002400021245004700045260002800092300002900120500000500149700000500154  a330.164bP945.WE  aPrice, Cetherine M.  aWelfare economics in theory and practiceb  aLondonbMacmillanc1977  aviii, 175p. Index. Bibl.  a  a