1. The Republic;Plato,1966
2. The Legacy of Malthus: The Social Costs of Scientific Racism;Chase,1977
3. Human Genetics: Problems and Approaches;Vogel,1986
4. Do environmental similarities explain the similarity in intelligence of identical twins reared apart?;Bouchard;Intelligence,1983
5. Personality similarity of monozygotic twins;Bouchard;Physician Patient,1983