References
- Caldwell, L. K., 1971: Environment. A Challenge to Modern Society. — Anchor Books, Doubleday & Company, Garden City, New York, 301 pp.
- Caldwell, L. K., 1973: In Defense of Earth. — Indiana Univ. Press, Bloomington, Indiana, 295 pp.
- Great Lakes Science Advisory Board, 1978: The Ecosystem Approach. — Internat. Joint Commission, Great Lakes Regional Office, Windsor, Ontario, 49 pp.
- Gysi, M., 1980: A Guide to Conservational Pricing. — Vantage Press, New York, 114 pp.
- International Joint Commission, 1978: Sixth Annual Report. Great Lakes Water Quality. — Washington, D.C. and Ottawa, Canada, 28 pp.
- Johnson, M. G., 1980: Great Lakes environmental protection policies from a fisheries perspective. — Can. J. Fish. Aq. Sci. 37 (7): 1196–1204.
- Lee, B. J., Regier, H. A. & Rapport, D. J., 1980: Ecosystem management strategies for the Great Lakes and their Basin. — In manuscript.
- Odum, E. P., 1971: Fundamentals of Ecology. — W. B. Saunders, Philadelphia, 3rd ed., 574 pp.
- PLUARG (Pollution from Land Use Activities Reference Group), 1978: Environmental management strategy for the Great Lakes System. — Internat. Joint Commission, Great Lakes Regional Office, Windsor, Ontario, 113 pp.
- Tansley, A. G., 1935: The use and abuse of vegetational concepts and terms. — Ecology 16: 284–307.