Tiwari, S.C.. <br/><br/>
Modern eology /  

 - 1st edn /  
 - Dehra Dun :   Bishen Singh Mahendra Pal Singh. 
 - 727p ;  
<br/><br/><label>ISBN: </label>81-211-0088-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology <Geography > <ecology>
<br/><br/><label>Dewey Class. No.: </label>G:5  / N2