Choudhary, A.K. <br/><br/>
Environmental engineering 

 - New Delhi  Dhanpat Rai  1996 
 - 145p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>628:504--Safety engineering--Environmental engineering
<br/><br/><label>Dewey Class. No.: </label>628:504  / CHO