1. American Psychiatric Association (1980).Diagnostic and statistical manual: Third edition (DSM-III). Washington, DC: Author.
2. American Psychiatric Association (1987).Diagnostic and statistical manual: Third edition revised (DSM-III-R). Washington, DC: Author.
3. Clark, W. (1966). Operational definitions of drinking problems and associated prevalence ratios.Quarterly Journal of Studies on Alcohol, 27 648?68.
4. Cornish, D.B. (1978).Gambling: a review of the literature and its implications for policy and research HMSO: London.
5. Culleton, R. (1985a).A survey of pathological gambling in the state of Ohio. Philadelphia: Transition Planning Associates.