Alexander, Richard D. 1979. Darwinism and Human Affairs. Seattle : Univ. of Washington Press.

Campbell, Donald T.1976. “On the Conflicts between Biological and Social Evolution and between Psychology and Moral Tradition. Zygon: Journal of Religion and Science  11: 167–208.

Dawkins, Richard. 1976. The Selfish Gene. New York : Oxford Univ. Press.

deBeer, Gavin.1973.” Evolution  .” In The New Encyclopedia Britannica15th ed., Macropedia 7:7–23. London : Encyclopedia Britannica.

Eger, Martin. 1988. “A Tale of Two Controversies: Dissonance in the Theory and Practice of Rationality. Zygon: Journal of Religon and Science  23:291–325.

Ghiselin, Michael. 1974. The Economy of Nature and the Evolution of Sex. Berkeley : Univ. of California Press.

Graham, Loren R. 1979.” The Multiple Connections between Science and Ethics  .”Hastings Center Report 9, no. 3(June): 35–40.

Kitcher, Philip. 1982. Abusing Science: The Case against Creationism. Cambridge , Mass. : MIT Press.

Mill, John Stuart. [1859] 1961. “On Liberty  ” In The Philosophy of John Stuart Mill” ed. MarshallCohen. New York : Random House.

Ruse, Michael. 1982Darwinism Defended. Reading, Mass.: Addison‐Wesley.

Ruse, Michael.1984. “Review of Peter Singer, The Expanding Circle. Environmental Ethics  6: 91–94.

Scheffler, Israel1965. Conditions of Knowledge. Chicago : Scott, Foresman.

Simpson, George G1949. The Meaning of Evolution. New Haven : Yale Univ. Press.

Wilson, Edward O.1975. Sociobiology: The New Synthesisw. Cambridge , Mass. : Harvard Univ. Press.