000			00323nam a2200133Ia 4500
008			160316s1991 xxu||||| |||| 00| 0 eng d
020			_a
100			_aPitchaiah, P Sankara
245			_aWater Ecology Pollution And Management
250			_a
260			_aAllahabad _bChungh Publications _c1991
300			_a
700			_a _a
999			_c16383 _d16383