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,Cardigan & Mynydd Preseli = Aberteifi a Mynydd Preseli,,Ordnance Survey,2003,OS landranger map,,0319227456,,https://cir.nii.ac.jp/crid/1130000797641462016