1. Drugs;Ray,1969
2. Medicine Takers;Dunnell,1972
3. Psychiatric and physiological reactions produced by over-the-counter medications;Hall;J Psychedelic Drugs,1978
4. American Pharmaceutical Association: Handbook of Non-Prescription Drugs. ed 5, Washington, DC, 1977.
5. American Pharmaceutical Association: Handbook of Non-Prescription Drugs. ed 6, Washington, DC, 1979.