APA (7th ed.) Citation

Sibelius, J., Ferras, C., von Karajan, H., & Kamu, O. (1976). Basic Sibelius. Polydor International GmbH.

Chicago Style (17th ed.) Citation

Sibelius, Jean, Christian Ferras, Herbert von Karajan, and Okko Kamu. Basic Sibelius. Hamburg: Polydor International GmbH, 1976.

MLA (9th ed.) Citation

Sibelius, Jean, et al. Basic Sibelius. Polydor International GmbH, 1976.