- Beauty for America. (Washington, D. C.: Proceedings of the White House Conference on Natural Beauty, May 24-25, 1965).
- Brandwein, Paul F., in Future Environments of North America, (New York: Natural History Press, 1966), p. 630.
- Brennan, Matthew J. ed., People and Their Environment-Teacher's Curriculum Guides to Conservation Education, Grades 1-12, (Chicago: J. G. Ferguson Publishing Co. (Doubleday), 1969.).
- Conservation Education in American Schools. (Washington, D. C.: American Association of School Administrators, 1951).
- Conservation-in the People's Hands, (Washington, D.C.: American Association of School Administrators, 1964).
- Johnson, Carl S., and Bambach, Charles A., A Survey of Printed Materials for Conservation Education. (Columbus. Ohio: Cooperative Research Project No. 2213, The Ohio State University).
Environmental Education
Volume 1, 1969 - Issue 1