APA-referens (7:e uppl.)

Bultmann, R., Jüngel, E., Müller, K., & Harrisville, R. A. (2014). What is theology ? Twentieth Century Religious Thought.

Chicago-referens (17:e uppl.)

Bultmann, Rudolf, Eberhard Jüngel, KlausW Müller, och Roy A. Harrisville. "What Is Theology ?" Twentieth Century Religious Thought 2014.

MLA-referens (8:e uppl.)

Bultmann, Rudolf, et al. "What Is Theology ?" Twentieth Century Religious Thought, 2014.