1. Bancroft, J. (1989) Human Sexuality and Its Problems, 2nd edn. Edinburgh: Churchill Livingstone.
2. Black, D. A. and Spinks, P. (1985) 'Predicting Outcomes of Mentally Disordered and Dangerous Offenders'. In Farrington, D. P. and Tarling, R. (eds) Prediction in Criminology. Albany: State University of New York Press.
3. Blackburn, R. (1982) On the Relevance of the Concept of the Psychopath'. In Black, D. A. (ed.) Issues in Criminological and Legal Psychology. Leicester: British Psychological Society, pp. 12-25.
4. Curra, J. (2000) The Relativity of Deviance. Thousand Oaks, CA: Sage.
5. Howard, R. C., Fenton, G. W. and Fenwick, P. B. C. (1982) Event-related Potentials in Personality and Psychopathology: A Pavlovian Approach. Letchworth, Herts: J. Wiley & Sons, Research Studies Press.