Publications (6)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| March 1960 | Astounding/Analog Science Fact & Fiction, March 1960 | Street & Smith Publications, Inc. | MAGAZINE | 50 |
| July 1960 | Astounding/Analog Science Fact & Fiction, July 1960 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 42 |
| August 2007 | The Trouble with Humans | Baen Books | Collection | 98 |
| August 2007 | The Trouble with Humans | Baen Books | Collection | |98 |
| January 2010 | The Trouble with Humans | Baen Books | Collection | 135 |
| October 2010 | The 1635: The Eastern Front Disk | Baen Books | Omnibus | |26.05 |