00257nam a2200097Ia 4500080001800000100002000018245004900038260004300087300001000130583001900140  a02.01.01 S617  aSingh, Manmohan  aDevelopment policy research - the task ahead  b[World Bank]aWashington, D.C.USc1989  a29 p.  c3/7/00kM2LMGR