APA (7th ed.) Citation

Kupfer-Koberwitz, E. (1957). Wie es begann.

Chicago Style (17th ed.) Citation

Kupfer-Koberwitz, Edgar. Wie Es Begann. 1957.

MLA (8th ed.) Citation

Kupfer-Koberwitz, Edgar. Wie Es Begann. 1957.

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