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. Hydrographic Department,North Sea (East) pilot : eastern part of North Sea from Scheveningen to Skagen,6th ed,United Kingdom Gydrographic Office,2007,N.P.,,9780707718774,,https://cir.nii.ac.jp/crid/1130282272851249408