Comparative statement of estimates and statistics on narcotic drugs: for ..., furnished by governments in accordance with the international treaties = État comparatif des évaluations et des statistiques sur les stupéfiants fournies = Estado comparativo de las previsiones y las estadísticas de estupefacientes facilitadas (Final report of the Permanent Central Narcotics Board and Drug Supervisory Body, 1968)
Anfangs ohne span. Parallelsacht
Urh. 1966: Permanent Central Narcotics Board