Sharma, P.D. and Misra R. <br/><br/>
Elements of Ecology 

 - 3 
 - Meerut  Rastogi Publications  1975 
 - 358 
<br/><br/><label>Publisher. No.: </label> Rastogi Publishers 
<br/><br/><label>Subjects--Personal Names: </label> Environmental Science 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science