| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1962 |
|
Analog Science Fact -> Science Fiction, May 1962 | Condé Nast | MAGAZINE | 115 |
| September 1962 |
|
Analog Science Fact -> Science Fiction, September 1962 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 48 |
| March 1968 |
|
Impossible? | Belmont Books | Collection | 126 |
| March 1968 |
|
Impossible? | Belmont Books | Collection | 126 |
| October 2009 | Sight Gag | Project Gutenberg | Chapbook | ||
| November 2010 |
|
Short Science Fiction Collection 42 | LibriVox | Anthology | |17 |