APA (7th ed.) Citation

Wagner, R., Karajan, H. v., Adam, T., Ridderbusch, K., Büchner, E., & Lunow, H. (2008). Opera & vocal. Emi Classics.

Chicago Style (17th ed.) Citation

Wagner, Richard, Herbert von Karajan, Theo Adam, Karl Ridderbusch, Eberhard Büchner, and Horst Lunow. Opera & Vocal. [S.l.]: Emi Classics, 2008.

MLA (9th ed.) Citation

Wagner, Richard, et al. Opera & Vocal. Emi Classics, 2008.