Keller, David R. 
Environmental ethics : the big questions /  
edited by David R. Keller. 
 - /   . 
 - NULL :   Wiley-Blackwell ,   2010. 
 - xvii, 581p. :   ills., figs ;   27cm .  
Includes bibliographical reference 
9781405176385  USD54.95 
ENVIRONMENTAL ETHICS 
179.1  / KEL/E