| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1957 |
|
Galaxy Science Fiction, January 1957 | Galaxy Publishing Corporation | MAGAZINE | 27 |
| March 1957 |
|
Galaxy Science Fiction, No. 48 | Strato Publications | MAGAZINE | 25 |
| March 2016 | Moral Equivalent | Project Gutenberg | Chapbook |