APA (7th ed.) Citation

Ruppel, W. (1964). Photospannungen in Photoleitern.

Chicago Style (17th ed.) Citation

Ruppel, Wolfgang. Photospannungen in Photoleitern. 1964.

MLA (9th ed.) Citation

Ruppel, Wolfgang. Photospannungen in Photoleitern. 1964.

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