APA (7th ed.) Citation

Schoenberg, A., Webern, A., Hart, H., & Petrarca, F. (1990). Six orchestral songs for voice and piano, op. 8. Masters Music Publications.

Chicago Style (17th ed.) Citation

Schoenberg, Arnold, Anton Webern, Heinrich Hart, and Francesco Petrarca. Six Orchestral Songs for Voice and Piano, Op. 8. Boca Raton, Fla.: Masters Music Publications, 1990.

MLA (9th ed.) Citation

Schoenberg, Arnold, et al. Six Orchestral Songs for Voice and Piano, Op. 8. Masters Music Publications, 1990.