Cita APA (7th ed.)

Petrie, C. (1960). Trombone and Baritone Method. Bd. 1. Belwin-Mills.

Cita Chicago (17th ed.)

Petrie, Charles. Trombone and Baritone Method. Bd. 1. Melville, NY: Belwin-Mills, 1960.

Cita MLA (8th ed.)

Petrie, Charles. Trombone and Baritone Method. Bd. 1. Belwin-Mills, 1960.