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,"Iona, Ulva and West Mull",,Ordnance Survey,1986,"1:50,000 landranger series",,0319220486,,https://cir.nii.ac.jp/crid/1130000795246932096