Khopkar, S. M. <br/><br/>
Environmental Pollution Analysis 
/ by S. M. Khopkar 
 - New Delhi:  New Age International (P) Limited , Publishers;  1933.  
 - 190p. 
<br/><br/><label>ISBN: </label>81-224-0463-4 
<br/><br/><label>Dewey Class. No.: </label>363.73  / KHO/E