APA (7th ed.) Citation

Sibelius, J., Sparf, N., & Forsberg, B. (1991). Music for violin and piano. Grammofon AB BIS.

Chicago Style (17th ed.) Citation

Sibelius, Jean, Nils-Erik Sparf, and Bengt Forsberg. Music for Violin and Piano. Djursholm: Grammofon AB BIS, 1991.

MLA (9th ed.) Citation

Sibelius, Jean, et al. Music for Violin and Piano. Grammofon AB BIS, 1991.