Srivastava,Yogendra N. <br/><br/>
Environmental pollution/by Yogendra N. Srivastava 

 - New Delhi  Ashish Publishing House  1995 
 - 84p. 
<br/><br/><label>ISBN: </label>817024210x 
<br/><br/><label>Dewey Class. No.: </label>363.739  Sr31E