Survival of the Fittest
| First published | March 1964 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1964 |
|
The Magazine of Fantasy and Science Fiction, March 1964 | Mercury Press, Inc. | MAGAZINE | 23 |
| August 1964 |
|
Die Kristallwelt | Heyne | Anthology | 102 |
| October 1964 |
|
Fiction, #131 | OPTA | MAGAZINE | 117 |
| July 1971 |
|
Magazine de Ficção Científica, July 1971 | Revista do Globo | MAGAZINE | 23 |