APA (7th ed.) Citation

Küng, H. (1975). 20 Thesen zum Christsein. Piper.

Chicago Style (17th ed.) Citation

Küng, Hans. 20 Thesen Zum Christsein. München: Piper, 1975.

MLA (9th ed.) Citation

Küng, Hans. 20 Thesen Zum Christsein. Piper, 1975.

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