APA (7th ed.) Citation

Cage, J., Clayton, J., & Pierce, J. (1988). Works for piano & prepared piano. Wergo-Schallpl.

Chicago Style (17th ed.) Citation

Cage, John, Jay Clayton, and Joshua Pierce. Works for Piano & Prepared Piano. Mainz: Wergo-Schallpl, 1988.

MLA (9th ed.) Citation

Cage, John, et al. Works for Piano & Prepared Piano. Wergo-Schallpl, 1988.