00317nam a2200133Ia 4500008004100000100001300041245004500054250001200099260002800111300000800139650001400147942000700161999001500168190216s9999||||xx |||||||||||||| ||und||  aSeth M L 0aTheory And Practice Of Economic Planning  a6th Ed.  bSulthan Chand &coc1977  a732  aEconomics  cBK  c9307d9307