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 National Board for Prices and Incomes and Great Britain. Dept. of Economic Affairs and Great Britain. Ministry of Transport,"Proposals by the London Transport Board and British Railways Board for fare increases in the London area : Presented to Parliament by the Secretary of State for Economic Affairs and the Minister of Transport by command of Her Majesty, March 1968",,H.M.S.O.,1968,Report,,,,https://cir.nii.ac.jp/crid/1130282268982237952