APA (7th ed.) Citation

Gogarten, F. (1956). Was ist Christentum? Vandenhoeck & Ruprecht.

Chicago Style (17th ed.) Citation

Gogarten, Friedrich. Was Ist Christentum? Göttingen: Vandenhoeck & Ruprecht, 1956.

MLA (8th ed.) Citation

Gogarten, Friedrich. Was Ist Christentum? Vandenhoeck & Ruprecht, 1956.

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