Serialized in Astounding, February-March 1953
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 2006 | Null-ABC | Project Gutenberg | Chapbook | ||
| July 2006 |
|
Null-ABC | Wildside Press | Chapbook | |
| February 2007 |
|
Null-ABC | Wildside Press | Chapbook | |
| October 2011 |
|
Null-ABC | CreateSpace | Chapbook | |
| October 2011 |
|
Null-ABC | LibriVox | Chapbook | |
| March 2013 |
|
The H. Beam Piper Megapack | Wildside Press | Omnibus | 566 |
| April 2022 |
|
Null-ABC | Wildside Press | Chapbook |