(1960). Trombone and Baritone Method. Bd. 1: Charles Petrie. Belwin-Mills.
Cita Chicago Style (17a ed.)Trombone and Baritone Method. Bd. 1: Charles Petrie. Melville, NY: Belwin-Mills, 1960.
Cita MLA (8a ed.)Trombone and Baritone Method. Bd. 1: Charles Petrie. Belwin-Mills, 1960.
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