Traffic in opium and other dangerous drugs : Conference on the limitation of the manufacture of narcotic drugs  : analysis of the international trade in morphine, diacetylmorphine and cocaine for the years 1925-1929 /
League of Nations.
Conference on the Limitation of the Manufacture of Narcotic Drugs(1931 :Geneva, Switzerland)
Geneva : The League,
1931.
Official no.: C. 587. M. 228. 1930. XI. 
Vol. 1 has title and text in French and English.
Vols. 2-3: Analysis ... for the years 1925-1930.
pt. I. Diagram illustrating the relation of the licit to the illicit traffic. Introduction: Note by the Secretariat. Analytical tables -- pt. II. General analysis. Morphine and diacetylmorphine -- pt. III. General analysis. Cocaine.
Narcotics.
Opium trade.
Traffic in opium and other dangerous drugs.