R. L. Kotpal <br/><br/>
Concepts of Ecology : Environmental and Field Biology 

 - Jalandhar  Vishal Publishing Co 
 - 264p 
<br/><br/>R. L. Kotpal & N. P. Bali: Concepts of Ecology : Environmental and Field Biology.  Jalandhar.  Vishal Publishing Co, Rs. 75--(574.5KOT)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>574.5  / KOT