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 Great Britain. Ordnance Survey,Northampton and Milton Keynes,,Ordnance Survey,1987,"1:50,000 landranger series",,0319221520,,https://cir.nii.ac.jp/crid/1130000793658255488