Records of the Conference for the Limitation of the Manufacture of Narcotic Drugs, Geneva, May 27th to July 13th, 1931.
Conference on the Limitation of the Manufacture of Narcotic Drugs(1931 :Geneva, Switzerland)
League of Nations.
Geneva : League of Nations,
1931-32.
At head of title: 
"Official no.: C.509. M.214. 1931. XI."
Series of League of Nations publications. XI. Opium and other dangerous drugs. 1931. XI. 10I-II.
Vol. 1, Annex 35, contains the Convention, Protocol of signature and Final act dated, Geneva, August 26th, 1931, with title and text in French and English, document no. C.455. M.193. 1931. XI. 
I. Plenary meetings : text of the debates -- II. Meetings of the committees and the sub-committee on control.
Narcotics.
Opium trade.