1. Cloninger, C. R. (1986). A unified biosocial theory of personality and its role in the development of anxiety states.Psychiat. Dev. 3:167?226.
2. Eaves, L. J., Eysenck, H. J., and Martin, N. G. (1989).Genes, Culture and Personality: An Empirical Approach, Academic Press, London.
3. Eysenck, H. J. (1967).The Biological Basis of Personality, Thomas, Springfield, Il.
4. Gray, J. A. (1982). A critique of Eysenck's theory of personality. In Eysenck, H. J. (ed.),A Model for Personality, Springer, New York. pp. 246?276.
5. Martin, N. G., and Jardine, R. (1986). Eysenck's contribution to behavior genetics. In: Modgil, S., Modgil, S. (eds.),Hans Eysenck: Consensus and Controversy. Lewes, Sussex: Falmer Press.