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,"Digital networks, digital sections and digital line systems : recommendations G.801-G.961",,International Telecommunication Union,1989,"Blue book : CCITT, IXth Plenary Assembly, Melbourne, 14-25 November 1988",,9261033512,,https://cir.nii.ac.jp/crid/1130000796159367040