APA (7th ed.) Citation

Reich, S., Reich, S., Reich, S., & Reich, S. (1999). Phase patterns. Wergo.

Chicago Style (17th ed.) Citation

Reich, Steve, Steve Reich, Steve Reich, and Steve Reich. Phase Patterns. Mainz, Germany: Wergo, 1999.

MLA (9th ed.) Citation

Reich, Steve, et al. Phase Patterns. Wergo, 1999.