Wright, Richard T. <br/><br/>
Environmental science : toward a sustainable future 
/by Wright, Richard T. 
 - 7th edition 
 - New Delhi  PHI Learning Private Limited.  2010 
 - xxii,674p. 
<br/><br/><label>ISBN: </label>978-81-203-4129-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Sustainability
<br/><br/><label>Dewey Class. No.: </label>574.5  / WRI/E