| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1965 |
|
Amazing Stories, March 1965 | Ziff-Davis Publishing Company | MAGAZINE | 42 |
| 1966 |
|
Anticipación, #1 | Ferma | MAGAZINE | 69 |
| August 2007 |
|
The Trouble with Humans | Baen Books | Collection | 192 |
| August 2007 |
|
The Trouble with Humans | Baen Books | Collection | |192 |
| January 2010 |
|
The Trouble with Humans | Baen Books | Collection | 259 |
| October 2010 | The 1635: The Eastern Front Disk | Baen Books | Omnibus | |26.09 |