1. Committee on Drugs: Effects of marijuana on man;Pediatr.,1975
2. Marijuana metabolites in urine of man;Hollister;Clin. Pharmacol. Ther.,1972
3. Seventh Annual Report to the U.S Congress from the Secretary of Health, Education, and Welfare, NIDA: Marijuana and health, 1977.
4. General problems of drug abuse and drug dependence;Martin,1977
5. Karler, R., Chemistry and metabolism, in “Marijuana research findings: 1976” (R. C. Petersen, ed.) pp. 55–66. NIDA Research Monograph 14, 1977.