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
"Abt, Franz and Spicker, Max","Practical singing tutor for all voices, op. 474 : complete bar. or bass.","Rev. ed., with a short practical treatise on the art of singing / by Max Spicker",G. Schirmer,1921,Schirmer's library of musical classics,,,,https://cir.nii.ac.jp/crid/1130000795641745024