Environmental ethics 
Michael Boylan.  
 - Upper Saddle River, NJ  Prentice Hall  2001.  
 - xv, 427p  23cm. 
<br/><br/>Includes bibliographical references.  
<br/><br/><label>ISBN: </label>0137763867 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental ethics.