APA (7th ed.) Citation

Purcell, H., & Corley, J. (1955). Trumpet voluntary. Robert King Music.

Chicago Style (17th ed.) Citation

Purcell, Henry, and John Corley. Trumpet Voluntary. North Easton, Mass: Robert King Music, 1955.

MLA (9th ed.) Citation

Purcell, Henry, and John Corley. Trumpet Voluntary. Robert King Music, 1955.