APA (7th ed.) Citation

Janssen, T., Sala, O., & Goebbels, H. (1988). Synthesizer.

Chicago Style (17th ed.) Citation

Janssen, Theo, Oskar Sala, and Heiner Goebbels. Synthesizer. [S.l.], 1988.

MLA (9th ed.) Citation

Janssen, Theo, et al. Synthesizer. 1988.