APA (7th ed.) Citation

Mueller, R., & Brown, K. (1972). Technical studies for trombone. International Music.

Chicago Style (17th ed.) Citation

Mueller, Robert, and Keith Brown. Technical Studies for Trombone. New York: International Music, 1972.

MLA (9th ed.) Citation

Mueller, Robert, and Keith Brown. Technical Studies for Trombone. International Music, 1972.