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
"Verdi, Giuseppe and Somma, Antonio",Un ballo in maschera (A masked ball) : a grand opera in three acts,,Fred Rullman,,Metropolitan Opera House grand opera libretto,,,,https://cir.nii.ac.jp/crid/1130000794650292992