000 00358nam a2200157Ia 4500
008 210804s1990||||xx |||||||||||||| ||und||
020 _a8170242673
041 _aeng
082 _a824
_bTRI/WA
100 _aTripathi.A.K
245 0 _aWater pollution
250 _a1st
260 _aNew delhi
_bAshish publishing house
_c1990
300 _a326
942 _cBK
999 _c5376
_d5376