References
- Abrahamson , Gloria . “A Year-Long Environmental Project for Primary Grades,” Huxley College of Environmental Studies, Western Washington State College, Bellingham, Washington 98225
- French, Donald, Project Coordinator . “Fundamentals for Understanding Environmental Problems,” Environmental Education Project ESEA Title III, Section 306, 1601 Van Bureu, Topeka, KS 66612
- Shafer , Angelyn K. “An Environmentally Related Program for the First Grade,” Huxley College of Environmental Studies, Western Washington State College, Bellingham, Washington 98225
- U.S. Office of Education . 1973 . Environmental Education Handbook , U.S. Department of Health, Education and Welfare . Public Law 91–516) draft