00336nam a2200121Ia 4500020001500000082002000015100001900035245008500054260005200139300001300191500000500204700000500209  a9023729161  a338.74bR985.PG  aRuys, P. H. M.  aPublic goods and decentralisation; the duality approach in the theory of valueb  aThe NetherlandsbTilburg University Pressc1974  ax, 236p.  a  a