00503pab a2200157 454500008004000000100002100040245010000061260000900161300001400170362000800184650004500192650004000237650001500277700001700292773003600309180718b2005   xxu||||| |||| 00| 0 eng d  aKuman, K.N. Ravi  aLow economic efficiency of irrigation water resource in Krishna western delta of Andhra Pradesh  c2005  ap.249-58.  aJul  aWater resources - India - Andhra Pradesh  aIrrigation - India - Andhra Pradesh  aIrrigation  aSrinivas, D.  aAgricultural Situation in India