Publications (3)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| March 1958 | Galaxy Science Fiction, March 1958 | Galaxy Publishing Corporation | MAGAZINE | 107 |
| May 1958 | Galaxy Science Fiction, No. 62 | Strato Publications | MAGAZINE | 99 |
| April 2010 | The Ethical Way | Project Gutenberg | Chapbook |