000 00312nam a2200109Ia 4500
008 220510s1990 xx 000 0 und d
041 _aeng
082 _a350.8715 TRI/WAT
100 _aTRIPATHI, A. K. AND PANDEY S. N.
_9790422
245 _aWATER POLLUTION
260 _aNEW DELHI
_b ASHISH PUBLISHING HOUSE
_c1990
999 _c540619
_d540619