References
- ADDICTION RESEARCH FOUNDATION, through The Globe and Mail. Student drinking, drug abuse on rise. ARF says. November 20, 1991; A7
- Hindmarsh K. W., Opheim E. E. Drug abuse prevalence in Western Canada and the North West Territories: A survey of students in Grades 6–12. Int. J. Addict 1990; 25: 301–305
- Hindmarsh K. W., Opheim E. E., Porter S. The use of licit and illicit drugs by junior and senior high school students in rural communities. Can. J. Forensic Sci 1991; 24(3)125–130
- Hindmarsh K. W., Opheim E. E., Porter S. Alcohol and other substance abuse by Canadian youth. Can. Pharm. J 1992; 125(2)555, 544–545
- ROYAL CANADIAN MOUNTED POLICE. DRUGS-Drug Intelligence Trends Winter, 1991; 1(1)
- Schuchard M. K. Marijuana-America's Most Used and Least Understood Drug. National Parents' Resource Institute for Drug Education, Inc, AtlantaGeorgia 1992