Gower, W., & Voxman, H. Rubank advanced method: Eb or BBb bass, an outlined course of study designed to follow up any of the various elementary and intermediate methods. Rubank.
Chicago-referens (17:e uppl.)Gower, William, och Himie Voxman. Rubank Advanced Method: Eb or BBb Bass, an Outlined Course of Study Designed to Follow Up Any of the Various Elementary and Intermediate Methods. Chicago: Rubank.
MLA-referens (9:e uppl.)Gower, William, och Himie Voxman. Rubank Advanced Method: Eb or BBb Bass, an Outlined Course of Study Designed to Follow Up Any of the Various Elementary and Intermediate Methods. Rubank.
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