1. Publications concerning the Unesco International Environmental Education Program, Available through Unesco except as noted.
2. Questionnaire for Assessment of Resources for Environmental Education Needs and Priorities for Member States, Paris, Unesco, 1975.
3. International Workshop on Environmental Education, Belgrade, Yugoslavia, 1975 Final Report.
4. Educational Documentation and Information, World Trends in Environmental Education, Bulletin of the International Bureau of Education, Unesco/IBE, Paris, Geneva, 1976.
5. Trends in Environmental Education, Unesco, 1977.