APA (7th ed.) Citation

Hungerford, H. R., Volk, T. L., & Ramsey, J. M. (1988). A prototype environmental education curriculum for the middle school: A discussion guide for Unesco training seminars on environmental education. Unesco, Division of Science, Technical and Environmental Education.

Chicago Style (17th ed.) Citation

Hungerford, Harold R., Trudi L. Volk, and John M. Ramsey. A Prototype Environmental Education Curriculum for the Middle School: A Discussion Guide for Unesco Training Seminars on Environmental Education. [Paris]: Unesco, Division of Science, Technical and Environmental Education, 1988.

MLA (8th ed.) Citation

Hungerford, Harold R., et al. A Prototype Environmental Education Curriculum for the Middle School: A Discussion Guide for Unesco Training Seminars on Environmental Education. Unesco, Division of Science, Technical and Environmental Education, 1988.