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,"Black Sea pilot : Marmara Denizi, Black Sea and Azovskoye More with adjacent coasts of Turkey, Bulgaria, Romania and USSR",12th ed,Hydrographer of the Navy,1990,N.P.,,,,https://cir.nii.ac.jp/crid/1130000797153709184