000 00356pam a2200121a 44500
008 140414b1966 xxu||||| |||| 00| 0 eng d
100 _aK N DUGGAL
110 _aS CHAND & COMPANY LTD
245 _aELEMENTS OF ENVIRONMENTAL ENGINEERING
_c
260 _aDELHI
_bS CHAND & COMPANY LTD
_c1966
650 _aELEMENTS OF ENVIRONMENTAL ENGINEERING
906 _a55168
999 _c50350
_d50350