Cita APA (7th ed.)

Jaspert, B. (1981). Karl Barth - Rudolf Bultmann. Letters 1922-1966. William B. Eerdmans.

Cita Chicago (17th ed.)

Jaspert, Bernd.,ed. Karl Barth - Rudolf Bultmann. Letters 1922-1966. Grand Rapids, MI: William B. Eerdmans, 1981.

Cita MLA (9th ed.)

Jaspert, Bernd.,ed. Karl Barth - Rudolf Bultmann. Letters 1922-1966. William B. Eerdmans, 1981.