| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Amazing Stories Quarterly, Summer 1931 | Radio-Science Publications, Inc. | MAGAZINE | 432|432.1 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Amazing Stories Quarterly, Summer 1931 | Radio-Science Publications, Inc. | MAGAZINE | 432|432.1 |