Kohler, L., Oesterle, L., & Baker, T. (1908). Practical method for the piano, op. 300. Schirmer.
Lua i Stíl Chicago (17ú heag.)Kohler, Louis, Louis Oesterle, agus Theodore Baker. Practical Method for the Piano, Op. 300. New York: Schirmer, 1908.
Lua MLA (9ú heag.)Kohler, Louis, et al. Practical Method for the Piano, Op. 300. Schirmer, 1908.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.