Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL League of Nations. Committee of Experts for the Progressive Codification of International Law,"Letter dated April 2nd, 1927, from the Chairman of the Committee to the Secretary-General, reporting on the work of the third session of the Committee, held in March-April, 1927, and communicating to the Secretary-General various questionnaires and a repot for transmission to governments",,[League of Nations],1927,Publications of the League of Nations,,,,https://cir.nii.ac.jp/crid/1130282269844605824