TY  - BOOK
AU  - Rolston,Holmes
TI  - Environmental ethics: duties to and values in the natural world 
SN  - 087722501X (alk. paper) :
AV  - GF80 .R64 1988
U1  - 179/.1 19
PY  - 1988///
CY  - Philadelphia
PB  - Temple University Press
KW  - Environmental ethics
N1  - Includes index; Bibliography: p. 355-374
ER  -