Asthana,D.K. <br/><br/>
Environment ( problems and solutions)   

 - 2nd /   2006. 
 - N.Delhi:  S.Chand.  2006. 
 - 434p.:  23cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Botany, Environment. 
<br/><br/><label>Dewey Class. No.: </label>574.52