| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1957 |
|
Saturn, May 1957 | Candar Publishing Company | MAGAZINE | 2 |
| September 2002 |
|
Eternal Frontier | Baen Books | Collection | 3 |
| September 2002 |
|
Eternal Frontier | Baen Books | Collection | |
| March 2004 |
|
Eternal Frontier | Baen Books | Collection | 3 |