Epidemiologic approaches to the study of drug dependence
The abuse of psychotropic drugs
Problems in legislating against abuse of hallucinogenic fungi in Australia
Research on cannabis (marihuana)
The Eradication of Cannabis sativa L. with Herbicides in the Hunter River Valley, N.S.W., Australia
Indigenous and foreign poppy varieties characterized by the morphine content of their dry capsules
Resolution adopted by the Committee of Ministers of the Council of Europe