| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1931 |
|
Amazing Stories, June 1931 | Radio-Science Publications, Inc. | MAGAZINE | 287 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1931 |
|
Amazing Stories, June 1931 | Radio-Science Publications, Inc. | MAGAZINE | 287 |