Purcell, H., & Balla, G. English Piano Music for the Young Musician. Editio Musica.
Chicagoスタイル(17版)引用形式Purcell, Henry, , György Balla. English Piano Music for the Young Musician. Budapest: Editio Musica.
MLA(8版)引用形式Purcell, Henry, , György Balla. English Piano Music for the Young Musician. Editio Musica.
警告: この引用は必ずしも正確ではありません.