TY  - BOOK
AU  - Keller,David R.
TI  - Environmental ethics: the big questions 
T2  - Philosophy: the big questions
SN  - 9781405176385
PY  - 2010///
CY  - Chichester, West Sussex
PB  - Wiley-Blackwell
KW  - Environmental ethics
N1  - Includes bibliographical references (p. [575]-581)
ER  -