- Allen, Durwood L., Our Wildlife Legacy, Funk and Wagnalls, New York, 1954, p. 337.
- American Association of School Administrators, Conservation in the People's Hands, AASA, Washington, D.C., 1964, pp. 11–13.
- Cooley, Richard A., Politics and Conservation: The Decline of the Alaska Salmon, Harper and Row, New York 1963.
- Kennedy, John F., in The Quiet Crisis, Udall, Stewart L., Holt, Rinehart, and Winston, New York 1963, p. xiii.
- Leopold, Aldo, A Sand County Almanac, Oxford University Press, New York, 1949, p. viii, 224.
- Lively, C.; Preiss, J., Conservation Education in American Colleges, Ronald Press, New York, 1957, pp. 5–7.
- Marsh, George P., “Man and Nature,” introduction in Lowenthal, David (ed.), Man and Nature, Belknap Press, Cambridge, Massachusetts, 1965.
- McCabe, Robert A., “Some Conservation Problems in Wisconsin,” unpublished talk, 1963.
- Muir, John, John of the Mountains, Houghton Mifflin Co., Boston, 1938, p. 350.
- Olson, Sigurd, The Singing Wilderness, Alfred A. Knopf, New York, 1961.
- Pengelly, Leslie W., “Social Conservation,” in Conservation Volunteer, Minnesota Department of Conservation, 1965.
- Pinchot, Gifford, “What is Conservation,” in Readings in Resource Management, Burton and Kates (eds.), University of Chicago Press, 1965, p. 229.
- Sears, Paul B., “Conservation and the Changing Environment,” in Man's Role in Changing the Face of the Earth. University of Chicago Press, 1962, p. 90.
- Thoreau, Henry D., “Walking.” in Walden and Other Writings of Henry Thoreau, Random House, New York, 1950, p. 597.
- Udall, Stewart L., The Quiet Crisis, Holt, Rinehart, and Winston, New York, 1963, p. 119, 191.
- Weaver, J.C., “Conservation: More Ethics than Economics,” in Readings in Resource Management and Conservation, University of Chicago Press, 1965.
- Yearbook of Agriculture, “The Wise Use of Resources,” U.S. Department of Agriculture, 1958, p. 316.
Environmental Education
Volume 1, 1970 - Issue 4