1) Environmental ethics : duties to and values in the natural world

Author
Rolston, Holmes, III
Publisher
Philadelphia, PA : Temple Univ. Press
Pub. Date
1988
Language
English

2) Conserving natural value

Author
Rolston, Holmes, III
Publisher
New York : Columbia Univ. Press
Pub. Date
1994
Language
English

3) Philosophy gone wild : environmental ethics

Author
Rolston, Holmes, III
Publisher
Buffalo, NY : Prometheus Books
Pub. Date
1986
Language
English