APA (7th ed.) Citation

Berg, G., Friedensburg, F., & Quiring, H. (1940). Das Gold. Enke.

Chicago Style (17th ed.) Citation

Berg, Georg, Ferdinand Friedensburg, and Heinrich Quiring. Das Gold. Stuttgart: Enke, 1940.

MLA (9th ed.) Citation

Berg, Georg, et al. Das Gold. Enke, 1940.