APA (7th ed.) Citation

Karrer, O. (1938). Die Geheime Offenbarung. Benziger.

Chicago Style (17th ed.) Citation

Karrer, Otto. Die Geheime Offenbarung. Einsiedeln [etc.]: Benziger, 1938.

MLA (9th ed.) Citation

Karrer, Otto. Die Geheime Offenbarung. Benziger, 1938.

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