Gower, W., & Voxman, H. (1941). Rubank advanced method, trombone or baritone: An outlined course of study designed to follow up any of the various elementary and intermediate methods. Rubank.
Chicago-Zitierstil (17. Ausg.)Gower, William, und Himie Voxman. Rubank Advanced Method, Trombone or Baritone: An Outlined Course of Study Designed to Follow Up Any of the Various Elementary and Intermediate Methods. Chicago, Ill: Rubank, 1941.
MLA-Zitierstil (9. Ausg.)Gower, William, und Himie Voxman. Rubank Advanced Method, Trombone or Baritone: An Outlined Course of Study Designed to Follow Up Any of the Various Elementary and Intermediate Methods. Rubank, 1941.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.