APA (7th ed.) Citation

Friedemann, C. (1971). Das Weltall. Urania-Verl..

Chicago Style (17th ed.) Citation

Friedemann, Christian. Das Weltall. Leipzig: Urania-Verl., 1971.

MLA (8th ed.) Citation

Friedemann, Christian. Das Weltall. Urania-Verl., 1971.

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