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
"Apel, Willi and Rosenberg, Samuel N.",Anonymous Ballades,,American Institute of Musicology,1971,Corpus mensurabilis musicae,,,,https://cir.nii.ac.jp/crid/1130282269696663808