Convention for limiting the manufacture and regulating the distribution of narcotic drugs of July 13th, 1931 : historical and technical study by the Opium traffic section of the Secretariat of the League of nations.

Summary: "The object of the study is to show the relationship of the convention for limiting the manufacture and regulating the distribution of narcotic drugs of 1931 to the preceding international opium conventions, which it supplements and completes; to explain the mechanism of the convention and the interrelation of its various provisions; to show how it operates and to comment upon and explain its various articles"--Note by the secretary-general.