00577cam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001500102100002300117245010500140260003800245300001100283650003400294650001700328650002600345CHAP20220817041351.0971013s1972            r     00010     d  a12375  a13347  a17418  cCHAP  a333.91bH300aHaveman, Robert H.14aThe economic performance of public investments; an ex post evaluation of water resources investments  aBaltimore :bJohns Hopkins,c1972  a126 p.14aAguaxAbastecimientoxCostos.14aInversiones.14aRecursos hidraulicos.