APA (7th ed.) Citation

Zwicky, H. Über die spektrale photographische Sensibilisation. Swiss Chemical Society.

Chicago Style (17th ed.) Citation

Zwicky, Hans. Über Die Spektrale Photographische Sensibilisation. Swiss Chemical Society.

MLA (9th ed.) Citation

Zwicky, Hans. Über Die Spektrale Photographische Sensibilisation. Swiss Chemical Society.

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