APA (7th ed.) Citation

Maass, F. (1978). Was ist Christentum? Mohr.

Chicago Style (17th ed.) Citation

Maass, Fritz. Was Ist Christentum? Tübingen: Mohr, 1978.

MLA (9th ed.) Citation

Maass, Fritz. Was Ist Christentum? Mohr, 1978.

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