Gower, W. (1956). Trombone or Baritone. Rubank.
Cita Chicago (17th ed.)Gower, William. Trombone or Baritone. Miami, Fl.: Rubank, 1956.
Cita MLA (8th ed.)Gower, William. Trombone or Baritone. Rubank, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.