APA (7th ed.) Citation

Mager, T., Schulze-Boysen, H., & Harnack, A. (1999). Die Widerstandsorganisation Schulze-Boysen/Harnack. Tectum.

Chicago Style (17th ed.) Citation

Mager, Tina, Harro Schulze-Boysen, and Arvid Harnack. Die Widerstandsorganisation Schulze-Boysen/Harnack. Marburg: Tectum, 1999.

MLA (8th ed.) Citation

Mager, Tina, et al. Die Widerstandsorganisation Schulze-Boysen/Harnack. Tectum, 1999.