APA (7th ed.) Citation

Stephan, H., Kreis, W., & Post, H. (1944). Wilhelm Kreis. Stalling.

Chicago Style (17th ed.) Citation

Stephan, Hans, Wilhelm Kreis, and Herbert Post. Wilhelm Kreis. Oldenburg: Stalling, 1944.

MLA (8th ed.) Citation

Stephan, Hans, et al. Wilhelm Kreis. Stalling, 1944.