Conference on the Suppression of Opium-Smoking ... : Agreement and Final act, signed at Bangkok, 27 November 1931, and amended by the protocol signed at Lake Success, New York, 11 December 1946 = Conférence pour la suppression de l'habitude de fumer l'opium ... : Accord et Acte final, signés à Bangkok le 27 novembre 1931, et amendés par le protocole sign (United Nations, 1947)