APA (7th ed.) Citation

Jägerstätter, F., Putz, E., & Krieg, R. A. (2009). Letters and writings from prison. Orbis Books.

Chicago Style (17th ed.) Citation

Jägerstätter, Franz, Erna Putz, and Robert Anthony Krieg. Letters and Writings from Prison. Maryknoll, N.Y.: Orbis Books, 2009.

MLA (9th ed.) Citation

Jägerstätter, Franz, et al. Letters and Writings from Prison. Orbis Books, 2009.