000 00276nam a2200097Ia 4500
100 _aUppal H L
245 _aSeminar on Irrigation Drainage & Water Logging Problems
260 _bIrrigation & Power Res Inst, Amritsar
082 _aD2/N61/B12784
300 _app 70,maps 20; 28*22
999 _c29286
_d29286