000 00292nam a2200121Ia 4500
008 230912s9999 xx 000 0 und d
100 _aGarg, S.K.
245 0 _aSewage Disposal And Air Pollution Engineering
260 _aNEW DELHI
260 _bKHANNA
260 _c2010
300 _axx,1230
999 _c81724
_d81724