APA (7th ed.) Citation

Heller, S., & Oesterle, L. (1930). Thirty-two preludes for the piano, op. 119. G. Schirmer.

Chicago Style (17th ed.) Citation

Heller, Stephen, and Louis Oesterle. Thirty-two Preludes for the Piano, Op. 119. New York: G. Schirmer, 1930.

MLA (9th ed.) Citation

Heller, Stephen, and Louis Oesterle. Thirty-two Preludes for the Piano, Op. 119. G. Schirmer, 1930.