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
"Oman, Charles William Chadwick, Sir","The Dark Ages, 476-918",4th ed,Rivingtons,1901,Periods of European history,,,,https://cir.nii.ac.jp/crid/1130000796655555840