League of Nations. Permanent Central Opium Board

• Daishichikai Ahen Shimon Iinkai
• Rapport au Conseil sur les statistiques des stupéfiants relatives à l'année 1938 et sur les travaux du comité au cours de l'année 1939
• Report to the Council
• Report to the council on the statistics of narcotics for the year 1937 and the work of the board during 1938
• Report to the council on the statistics of narcotics for the year 1938 and the work of the board during 1939
• Report to the council on the statistics of narcotics for the year 1939 and the work of the board during 1940
• Report to the Council on the work of the board (1941-1942) issued in compliance with the terms of the Geneva opium convention, signed on February 19th, 1925, and the convention for limiting the manufacture and regulating the distribution of narcotic drugs
• Statistique trimestrielle des importations et exportations
• Traffic in opium and other dangerous drugs
• Trafic de l'opium et autres drogues nuisibles