Libri di umweltethik

Environmental stewardship in the Judeo-Christian tradition

Environmental ethics; studies of man's self-destruction

Beyond spaceship earth

The modern crisis

The Bible and ecology

Umweltethik, Umwelthandeln

Values, conflict and the environment

Environmental renaissance

The Tao of liberation

An environmental proposal for ethics

Natur, Ethik und Fortschritt

Environmental philosophy

Spiritual Values for Earth Community