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
"Doflein, Erich and Doflein, Elma and Marler, Philip",The Doflein method : the violinist's progress : a course of violin instruction combined with musical theory and practice in duet-playing,,B. Schott's Söhne,1957,,,,,https://cir.nii.ac.jp/crid/1130000793964504704