| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Amazing Stories, July 1931 | Radio-Science Publications, Inc. | MAGAZINE | 379|379.3 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Amazing Stories, July 1931 | Radio-Science Publications, Inc. | MAGAZINE | 379|379.3 |