Byrd, W., & Balla, G. English Piano Music for the Young Musician. Editio Musica.
Chicago-Zitierstil (17. Ausg.)Byrd, William, und György Balla. English Piano Music for the Young Musician. Budapest: Editio Musica.
MLA-Zitierstil (8. Ausg.)Byrd, William, und György Balla. English Piano Music for the Young Musician. Editio Musica.
警告：這些引文格式不一定是100％准確.