Conference called to conclude a convention for the suppression of the illicit traffic in dangerous drugs : extradition under existing treaties for offences against drug laws : replies by governments to the circular letter of  February 8th, 1936 (C.L.22.1936.XI).
League of Nations.
Geneva : League of Nations,
1936.
Caption title.
"Official no.: Conf. S.T.D.4."
"Geneva, June 2nd, 1936."