Sharma, P D . <br/><br/>
Environmental biology   

 - Meerut :   Rastogi Publications,   19961997. 
 - 488 ;  
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Sciences
<br/><br/><label>Dewey Class. No.: </label>574.5  / SHA