| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1955 |
|
Astounding Science Fiction, July 1955 | Street & Smith Publications, Inc. | MAGAZINE | 158|158.1 |
| December 1955 |
|
Astounding Science Fiction, December 1955 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 125|125.1 |