Beyond the Land Ethic More Essays in Environmental Philosophy Callicott, J. Baird Heftet / 1999 / Engelsk
In Defense of the Land Ethic Essays in Environmental Philosophy Callicott, J. Baird Heftet / 1989 / Engelsk
Nature in Asian Traditions of Thought Essays in Environmental Philosophy Callicott, J. Baird Heftet / 1989 / Engelsk
Linking Ecology and Ethics for a Changing World Values, Philosophy, and Action Rozzi Ricardo Heftet / 2016 / Engelsk
Philosophizing ad Infinitum Infinite Nature, Infinite Philosophy Conche Marcel Heftet / 2015 / Engelsk