(1960). Trombone and Baritone Method. Bd. 1: Charles Petrie. Belwin-Mills.
Lua i Stíl Chicago (17ú heag.)Trombone and Baritone Method. Bd. 1: Charles Petrie. Melville, NY: Belwin-Mills, 1960.
Lua MLA (8ú heag.)Trombone and Baritone Method. Bd. 1: Charles Petrie. Belwin-Mills, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.