00315pab a2200121 454500008004000000100001700040245005400057260000900111300001300120362001100133650001500144773003400159180718b1997   xxu||||| |||| 00| 0 eng d  aDhawan, B.D.  aLarge-scale canal irrigation: how cost effective?  c1997  ap.A71-77  a28 Jun  aIrrigation  aEconomic and Political Weekly