Later reprinted as the first half of the novel "Titan's Daughter" (aka "Titans' Daughter"). According to Blish's acknowledgment in the 1981 Avon edition of the novel, "This novel version, like the original, could not have come into being without the extensive contributions of my wife, Virginia Kidd."
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1952 |
|
Future Tense | Greenberg | Anthology | 237 |
| 1954 |
|
Future Tense | The Bodley Head | Anthology | |
| January 1956 |
|
Science Fiction Stories, January 1956 | Columbia Publications, Inc. | MAGAZINE | 6 |
| January 1960 |
|
Galactic Cluster | Faber and Faber | Collection | 144 |
| December 1961 |
|
Galactic Cluster | The Science Fiction Book Club (UK) | Collection | |
| January 1965 |
|
A Pair from Space | Belmont Books | Anthology | 87 |
| 1966 |
|
Gigantes en la Tierra / Nosotros los merodeadores | Organizacion Editorial Novaro | Anthology | 7 |
| 1968 |
|
A Pair from Space | Belmont Books | Anthology | 87 |
| 1968 |
|
A Pair from Space | Belmont Books | Anthology | 87 |
| 1968 |
|
Un par del espacio | Vértice | Anthology | 137 |
| 1980 |
|
Galactic Cluster | Granada | Collection | 157 |