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,Specifications of signalling systems R1 and R2 : recommendations Q.310-Q.490,,International Telecommunication Union,1989,"Blue book : CCITT, IXth Plenary Assembly, Melbourne, 14-25 November 1988",,9261034810,,https://cir.nii.ac.jp/crid/1130000796937065088