000 00357nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a8121915473
082 _a628 D866
100 _aDUGGAL, K.N.
245 0 _aELEMENTS OF ENVIRONMENTAL ENGINEERING
260 _aNEW DELHI
_bS. Chand Publishing
_c2009
300 _axvii+440p.,24x17Cms.
942 _cBK
_2DDC
999 _c36973
_d36973