| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1960 |
|
Amazing Science Fiction Stories, January 1960 | Ziff-Davis Publishing Company | MAGAZINE | 6 |
| May 2008 | Impact | Project Gutenberg | Chapbook | 6 | |
| January 2009 |
|
Short Science Fiction Collection 09 | LibriVox | Anthology | |5 |