| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1958 |
|
Galaxy Science Fiction, June 1958 | Galaxy Publishing Corporation | MAGAZINE | 51 |
| August 1958 |
|
Galaxy Science Fiction, No. 65 | Strato Publications | MAGAZINE | 49 |
| March 2016 | The Last Letter | Project Gutenberg | Chapbook |