APA (7th ed.) Citation

Becker, F. (1943). Blick in das Weltall (o.A.). Philipp Reclam jun..

Chicago Style (17th ed.) Citation

Becker, Friedrich. Blick in Das Weltall. o.A. Leipzig: Philipp Reclam jun., 1943.

MLA (8th ed.) Citation

Becker, Friedrich. Blick in Das Weltall. o.A. Philipp Reclam jun., 1943.

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