| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 2007 | Spacehounds of IPC | Project Gutenberg | Novel | ||
| April 2009 |
|
The Second E. E. 'Doc' Smith Omnibus | PageTurner Editions / Renaissance E Books | Omnibus | |3 |
| May 2010 |
|
Spacehounds of IPC | LibriVox | Novel | |
| April 2017 | Spacehounds of IPC | Project Gutenberg Canada | Novel | ||
| October 2017 |
|
Spacehounds of IPC: A Tale of the Inter-Planetary Corporation | Fiction House Press | Novel | |
| July 2022 |
|
Spacehounds of IPC | Faded Page | Novel |