Report to the Economic and Social Council on the twelfth session of the Commission, held in Geneva from 29 April to 31 May 1957. - Commission on Narcotic drugs 1957 : Geneva); United Nations. Commission on Narcotic Drugs ([Geneva : United Nations Economic and Social Council, Commission on Narcotic Drugs, 1957)
Official records
Keywords: Narcotics -- Periodicals; Opium trade -- Periodicals; Drug traffic -- Statistics -- Periodicals; Drug and Narcotic Control -- statistics