Khan Abrar Hassan <br/><br/>
Ecology,environment and energy. 

 - Srinagar  Department of distance education      1996 
 - iv,407p  cm. 
<br/><br/><label>Standard No.: </label>25077 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>G:55, N6