Citazione Stile APA (7a Edizione)

Barth, K., Bultmann, R., & Jaspert, B. (2015). Karl Barth-Rudolf Bultmann Briefwechsel 1911-1966. Twentieth Century Religious Thought.

Citazione stile Chigago Style (17a edizione)

Barth, Karl, Rudolf Bultmann, e Bernd Jaspert. "Karl Barth-Rudolf Bultmann Briefwechsel 1911-1966." Twentieth Century Religious Thought 2015.

Citatione MLA (8a ed.)

Barth, Karl, et al. "Karl Barth-Rudolf Bultmann Briefwechsel 1911-1966." Twentieth Century Religious Thought, 2015.