APA (7th ed.) Citation

Lancaster, E. L., & Manus, M. (1999). Piano: Duet book. Alfred Pub.

Chicago Style (17th ed.) Citation

Lancaster, E. L., and Morton Manus. Piano: Duet Book. Van Nuys, Calif: Alfred Pub, 1999.

MLA (9th ed.) Citation

Lancaster, E. L., and Morton Manus. Piano: Duet Book. Alfred Pub, 1999.