| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1951 |
|
Astounding Science Fiction, April 1951 | Street & Smith Publications, Inc. | MAGAZINE | 147 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1951 |
|
Astounding Science Fiction, April 1951 | Street & Smith Publications, Inc. | MAGAZINE | 147 |