Izvornik: A New Tune a Day - Trombone, Book 1. Music Sales America. easy-to-follow lessons on clear, uncluttered pages.
Prijevod: New Tune dan - Trombon, Book 1. Trombon note. New Tune dan - Trombon, knjiga 1 za Trombon. Koncert Band Method. 48 stranica. Boston Music.