APA (7th ed.) Citation

Gillis, L. (1966). 70 progressive studies for the modern bass trombonist. Bravo Music.

Chicago Style (17th ed.) Citation

Gillis, Lew. 70 Progressive Studies for the Modern Bass Trombonist. Hammond, L.A: Bravo Music, 1966.

MLA (9th ed.) Citation

Gillis, Lew. 70 Progressive Studies for the Modern Bass Trombonist. Bravo Music, 1966.

Warning: These citations may not always be 100% accurate.