| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1957 |
|
Galaxy Science Fiction, June 1957 | Galaxy Publishing Corporation | MAGAZINE | 53 |
| August 1957 |
|
Galaxy Science Fiction, No. 53 | Strato Publications | MAGAZINE | |45.1 |
| February 2016 | Prime Difference | Project Gutenberg | Chapbook |