TY  - BOOK
AU  - Rolston, Holmes.
TI  - Environmental ethics: : Duties to and values in the natural world
T2  - Ethics and action
SN  - 087722501-X
U1  - 574.5 
PY  - 1988///
CY  - USA: 
PB  - Temple University Press, 
KW  - Ecosystems
KW  - Human ecology
KW  - Life science
KW  - Natural rights
ER  -