1. Bowers, C. (1997). Education For an Ecologically Sustainable Culture. New York: State University of New York Press.
2. Brubacher, J. (1982). On the Philosophy of Higher Education. San Francisco: Jossey-Bass.
3. Clugston, R. (1999). Introduction. W. Leal Filho (ed.), Sustainability and University Life: Environmental Education, Communication and Sustainability (pp. 9–11). Berlin: Peter Lang.
4. CRE-COPERNICUS (1994). CRE-COPERNICUS Declaration. Geneva: CRE-COPERNICUS Secretariat.
5. CRE-COPERNICUS. CRE-COPERNICUS Homepage [Web Page]. URL
http://www.copernicuscampus.org
[2002, July].