00386nam a2200181Ia 4500008004100000082001000041082000800051100002100059245003800080250001200118260002100130260000900151300001000160365000600170365000600176365000600182650001600188181031s9999    xx            000 0 und d  a363.7  bSEN  aSengupta Nirmala  aUser-Friendly Irrigation Designs.  a2nd ed.  bSage Publication  c1993  a147p.  b0  d0  e0  aEnvironment