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 no 6 : recommendations Q.251-Q.300,,International Telecommunication Union,1981,"Yellow book : VIIth Plenary Assembly, Geneva, 10-21 November 1980",,9261010717,,https://cir.nii.ac.jp/crid/1130282271561385216