| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1952 |
|
Die Eroberung des Weltalls | Franckh | Nonfiction |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1952 |
|
Die Eroberung des Weltalls | Franckh | Nonfiction |