00804nam0 2200229 450 00002420320090310102101.00-8018-1333-620090310d1972----km-y0itay50------baengUSGBy-------001yy<<The >>economic performance of public investmentsan ex post evaluation of water resources investmentsRobert H. HavemanBaltimoreLondonThe Johns Hopkins pressc1972126 p.cm 24<<The >>economic performance of public investments45071Haveman,Robert H.112694ITUNIPARTHENOPE20090310RICAUNIMARC000024203112/524270NAVA2Economic performance of public investments45071UNIPARTHENOPE