First published in The Magazine of Fantasy and Science Fiction, August 1965.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1965 |
|
The Magazine of Fantasy and Science Fiction, August 1965 | Mercury Press, Inc. | MAGAZINE | 96 |
| January 1967 |
|
Fiction, #158 | OPTA | MAGAZINE | 67 |
| 1970 |
|
Mutants | Macmillan | Collection | 147 |
| 1973 |
|
Mutants | Collier Books | Collection | 147 |
| 1974 |
|
Mutants | Collier Books | Collection | 147 |
| 1978 |
|
Mutants | Collier Books | Collection | 147 |
| March 1983 |
|
Mutants | DAW Books | Collection | 135 |
| March 1983 |
|
Mutants | DAW Books / New American Library of Canada | Collection | 135 |
| April 1988 |
|
Space-Fighters | Ace Books | Anthology | 21 |