Wright, Richard T <br/><br/>
Environmental Science Toward a Sustainable Future 
Richard T. Wright  
 - 9th ed. 
 - New Delhi   PHI Learning   2007 
<br/><br/><label>ISBN: </label>978-81-2033-690-2  Rs.625.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Environmental sciences
<br/><br/><label>Dewey Class. No.: </label>333.7  / W932