Conference on the Suppression of Opium-smoking : convened under article XII of the Geneva Opium Agreement, 1925 : Bankok, November 9th to 27th, 1931.
Conference on the Suppression of Opium-Smoking(1931 :Bangkok)
League of Nations.
Geneva, League of Nations,
1932.
At head of title: .
"Official no.: C.577.M.284.1932.XI.  Geneva, August 1932.  League of Nations."
Opium abuse.
Opium trade