Sharma, P.D. <br/><br/>
Environmental biology /  
P.D. Sharma. 
 - 2nd ed /   . 
 - Meerut :   Rastogi Publications ,   1996-97. 
 - x,416p :   illus.,tables,figs,maps ;   22cm .  
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<br/><br/><label>ISBN: </label>8171332846  Rs.72.50 
<br/><br/><label>Subjects--Index Terms: </label>ECOLOGY 
<br/><br/><label>Dewey Class. No.: </label>577  / SHA/E