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
"Ayers, Brian",The German ocean : medieval Europe around the North Sea,,Equinox,2016,Studies in the archaeology of medieval Europe,,9781904768494,,https://cir.nii.ac.jp/crid/1130000794642355840