TY  - BOOK
AU  - Keller,David R.
TI  - Environmental ethics : the big questions / 
SN  - 9781405176385
U1  - 179.1 
PY  - 2010///
CY  - NULL : 
PB  - Wiley-Blackwell , 
KW  - ENVIRONMENTAL ETHICS
N1  - Includes bibliographical reference
ER  -