000 00489nam a2200145Ia 4500
008 170527s2016||||xx |||||||||||||| ||und||
020 _a9788121915472
082 _a628
_bD8719e
100 _aK. N. Duggal
245 0 _aElements of environmental engineering
260 _bS. Chand & Company Ltd.
_c1966
_aNew Delhi
300 _a451 p.
650 _aEngineering -- Greece -- HistorySewage-Environmental aspects; Buildings-Environmental engineering; Environmental engineering
942 _cBK
999 _c13597
_d13597