Garg, S.K <br/><br/>
Sewage disposal and air pollution engineering :  environmental engineering / 

 - New Delhi,  Khanna Publishers,  c1979. 
 -  v.2 .
<br/><br/><label>ISBN: </label>8174090576 
<br/><br/><label>LC Class. No.: </label>D3945 
<br/><br/><label>Dewey Class. No.: </label>363.728  / GAR