1. Addams, J. (1902).Democracy and social ethics. NY: Macmillan.
2. Albee, G. W. (1982). The politics of nature and nurture.American Journal of Community Psychology, 10, 1, 1–36.
3. Baltzell, E. D. (1964).The protestant establishment: Aristocracy and caste in America. New York: Random House.
4. Blum, J. M. (1978).Pseudoscience and mental ability. New York: Monthly Review Press.
5. Brigham, C. C. (1923).A study of American intelligence. Princeton, N.J.: Princeton University Press.