1. Bateson, Gregory, 1972. Steps to an Ecology of Mind. New York: Ballentine.
2. Berman, Morris, 1981. The Reënchantment of the World. Ithaca, NY: Cornell University Press.
3. Berry, Thomas, 1988. The Dream of the Earth. San Francisco: Sierra Club Books
4. Berry, Wendell, 1978. The Unsettling of America: Culture and Agriculture. New York: Avon/Sierra Club Books.
5. Boulding, Kenneth, 1978. Ecodynamics: A New Theory of Societal Evolution. London: Sage.