APA (7th ed.) Citation

Sahl, H., & Schöffling, K. Gesammelte Werke. Ammann.

Chicago Style (17th ed.) Citation

Sahl, Hans, and Klaus Schöffling. Gesammelte Werke. Zürich: Ammann.

MLA (8th ed.) Citation

Sahl, Hans, and Klaus Schöffling. Gesammelte Werke. Ammann.

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