00415pab a2200133 454500008004000000100001600040245009700056260000900153300001300162650003300175650001600208700002000224773003700244180718b2004   xxu||||| |||| 00| 0 eng d  aSingh, Gian  aWaterlogging and saline land in Punjab: a critical concern for the future of its agriculture  c2004  ap.51-63.  aAgriculture - India - Punjab  aAgriculture  aSingh, Surender  aResearch Journal Social Sciences