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
"Elgar, Edward and Young, Percy M. (Percy Marshall)",Letters of Edward Elgar and other writings,,Hyperion Press,1979,Encore music editions,,088355738X,,https://cir.nii.ac.jp/crid/1130000793855019392