著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
International Telegraph and Telephone Consultative Committee. Plenary Assembly and International Telecommunication Union and International Telegraph and Telephone Consultative Committee,General characteristics of international telephone connections and circuits : recommendations G.101-G.181,,International Telecommunication Union,1981,"Yellow book : VIIth Plenary Assembly, Geneva, 10-21 November 1980",,9261009611,,https://cir.nii.ac.jp/crid/1130000797478635648