000 00425nam a22001337a 4500
999 _c37478
_d37478
008 231218b ||||| |||| 00| 0 eng d
020 _a9789386173225
100 _aGupta, Om Prakash.
245 _aElement of water pollution control engineering /
_cPrakash Om Gupta.
260 _aNew Delhi:
_bKhanna Book Publishing Co. (P) Ltd.
_cc2019.
300 _axxi, 901 p. :
_bill. :
650 _aSewage disposal plants
942 _cBK