APA (7th ed.) Citation

National Education Association of the United States & United States. National Park Service. (1972). A guide to planning and conducting environmental study area workshops. National Education Association.

Chicago Style (17th ed.) Citation

National Education Association of the United States and United States. National Park Service. A Guide to Planning and Conducting Environmental Study Area Workshops. Washington, D.C.: National Education Association, 1972.

MLA (9th ed.) Citation

National Education Association of the United States and United States. National Park Service. A Guide to Planning and Conducting Environmental Study Area Workshops. National Education Association, 1972.