APA (7th ed.) Citation

Bornkamm, H., & Bornkamm, K. (1983). Luther in mid-career, 1521-1530. Fortress Press.

Chicago Style (17th ed.) Citation

Bornkamm, Heinrich, and Karin Bornkamm. Luther in Mid-career, 1521-1530. Philadelphia: Fortress Press, 1983.

MLA (8th ed.) Citation

Bornkamm, Heinrich, and Karin Bornkamm. Luther in Mid-career, 1521-1530. Fortress Press, 1983.

Warning: These citations may not always be 100% accurate.