00321pab a2200121 454500008004000000100001700040245005800057260000900115300001500124362001100139650001500150773003400165180718b1997   xxu||||| |||| 00| 0 eng d  aDhawan, B.D.  aProduction benefits from large scale canal irrigation  c1997  ap.A177-181  a27 Dec  aIrrigation  aEconomic and Political Weekly