APA (7th ed.) Citation

Cage, J., Roggenkamp, P., & Gottwald, C. (1991). Sonata XIII: Music for Marcel Duchamp. Song books I-II/Empty words III. Wergo.

Chicago Style (17th ed.) Citation

Cage, John, Peter Roggenkamp, and Clytus Gottwald. Sonata XIII: Music for Marcel Duchamp. Song Books I-II/Empty Words III. West Germany: Wergo, 1991.

MLA (9th ed.) Citation

Cage, John, et al. Sonata XIII: Music for Marcel Duchamp. Song Books I-II/Empty Words III. Wergo, 1991.