1. The shallow and the deep, long-range ecology movement;Naess;Inquiry,1973
2. La Nature Hors-la Loi;Ost,1995
3. Shrader-Frechette, K., 1991. Environmental ethics, human health and sustainable development. A background paper, WHO Commission on Health and Environment, (25 p.)
4. The Earth Charter Document: www.earthcharter.org. A recent and comprehensive overview of the field, in a textbook format, can be found in Des Jardins, J.R., 2001. Environmental Ethics, an Introduction to Environmental Philosophy, 3rd ed. Wadsworth, (277 p.)
5. The historical roots of ou ecological crisis;White;Science,1967