Kopprasch, C. (1967). 60 Selected Studies for BB Flat Tuba: C. Kopprasch. King.
Chicago-viite (17. p.)Kopprasch, C. 60 Selected Studies for BB Flat Tuba: C. Kopprasch. North Easton, Mass.: King, 1967.
MLA-viite (8. p.)Kopprasch, C. 60 Selected Studies for BB Flat Tuba: C. Kopprasch. King, 1967.
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