Wright, Richard T. <br/><br/>
Environmental Science: Towards a sustainable future 
by Richard T. Wright 
 - 9th ed.  
 - New Delhi  P H I   2007 
 - 712p. 
<br/><br/><label>ISBN: </label>81 203 3065 X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science
<br/><br/><label>Dewey Class. No.: </label>363.7  / WRI/E