References
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De Duve, Christian. 1995. Vital Dust: Life as a Cosmic Imperative. New York : Basic Books.
Gould, Stephen Jay. 1983. “Extemporaneous Comments on Evolutionary Hope and Realities ”. In Darwin's Legacy, Nobel Conference XVIII, ed. Charles L.Hamrum, 101–2. San Francisco : Harper and Row.
Kauffman, Stuart. 1993. The Origins of Order: Self Organization and Selection in Evolution. New York : Oxford Univ. Press.
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Ruse, Michael. 1996. Monad to Man: The Concept of Progress in Evolutionary Biology. Cambridge : Harvard Univ. Press.