000 00358nam a22001337a 4500
003 OSt
008 231230b |||||||| |||| 00| 0 eng d
082 _a628.1
_bP93W
100 _aPunima, B. C.
245 _aEnvironmental engineering (water supply engineering)
260 _aDelhi
_bStandard Publication Distributors
_c1979
300 _a471
942 _2ddc
_cBK
999 _c35396
_d35396