Gruenberg, E. (1919). Violin teaching and violin study rules and hints for teachers and students. Carls Fischer.
Citazione stile Chigago Style (17a edizione)Gruenberg, Eugene. Violin Teaching and Violin Study Rules and Hints for Teachers and Students. New York: Carls Fischer, 1919.
Citatione MLA (9a ed.)Gruenberg, Eugene. Violin Teaching and Violin Study Rules and Hints for Teachers and Students. Carls Fischer, 1919.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.