00473nam a2200133Ia 4500082002400000100002700024245011800051260005200169300001300221500004100234500000500275700003000280700002900310  a338.109595bB433.PE  aBall, Clive and Others  aProject evaluation in regional perspectiveba study of an irrigationcBy Clive Ball, Peter Hazell and Roger Slade  aBaltimorebJohns Hopkins University Pressc1982  ax, 326p.  a"A World Bank research publication."  a  aHazell, Peter ; jt. auth.  aSlade, Roger ; jt. auth.