References

HARDIN, G. 1963. The cybernetics of competition': A biologist's view of society. Perspectives in Biology and Medicine 7:1.
Hardin
1
7
Perspectives in Biology and Medicine
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LEOPOLD, A. 1966. A sand country almanac with essays on conservation from Round River. New York: Sierra Club/Ballantine Books.
Leopold
A sand country almanac with essays on conservation from Round River
1966
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