First published in Stellar #4, ed. Judy-Lynn del Rey, Ballantine, 1978.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1978 |
|
Stellar #4: Science-Fiction Stories | Del Rey / Ballantine | Anthology | 185 |
| June 1978 |
|
Stellar Science Fiction Stories #4 | Del Rey / Ballantine / SFBC | Anthology | 148 |
| June 1988 |
|
Minds, Machines and Evolution | Bantam Spectra | Collection | 168 |
| December 1999 |
|
Minds, Machines & Evolution | Baen Books | Collection | 193 |