References
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- Blum R. H. Students and Drugs. Jossey Bass, San Francisco 1969
- Goldstein J. W., Gleason T. C., Korn J. H. Whither the epidemic? Psychoactive drug use career patterns of college students. J. Appl. Soc. Psychol. 1975; 5(1)16–33
- NATIONAL COMMISSION ON MARIHUANA AND DRUG ABUSE. Marihuana: A Signal of Misunderstanding, Appendix. U.S. Government Printing Office, Washington, DC 1972; Vol. 1
- NATIONAL COMMISSION ON MARIHUANA AND DRUG ABUSE. Drug use in America: Problem in Perspective. U.S. Government Printing Office, Washington, DC 1973