APA (7th ed.) Citation

Just, G., & Hein, C. M. (1990). Zeuge in eigener Sache. Luchterhand.

Chicago Style (17th ed.) Citation

Just, Gustav, and Christoph M. Hein. Zeuge in Eigener Sache. Frankfurt am Main: Luchterhand, 1990.

MLA (8th ed.) Citation

Just, Gustav, and Christoph M. Hein. Zeuge in Eigener Sache. Luchterhand, 1990.