APA (7th ed.) Citation

Gillis, L. (1965). 20 etudes: For bass trombone with "F" attachment. Southern Music Co..

Chicago Style (17th ed.) Citation

Gillis, Lew. 20 Etudes: For Bass Trombone with "F" Attachment. San Antonio, Tex.: Southern Music Co., 1965.

MLA (9th ed.) Citation

Gillis, Lew. 20 Etudes: For Bass Trombone with "F" Attachment. Southern Music Co., 1965.