Wright,Richard T. <br/><br/>
Environmental science   towards sustainable future  

 - 10 
 - New Delhi   P.H.I.  2007 
 - xxii;712; 28cmsp 
<br/><br/><label>ISBN: </label>81-203-3042-0 
<br/><br/><label>Dewey Class. No.: </label>574.52  / wri/env