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
"Steenstrup, Johannes C.H.R. (Christoffer Hagemann Reinhardt) and Cox, Edward Godfrey",The medieval popular ballad,,University of Washington Press,1968,Washington paperbacks,,,,https://cir.nii.ac.jp/crid/1130000796415124480