This was expanded into the 1969 novella of the same name. DO NOT MERGE these records.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1957 |
|
Super-Science Fiction, August 1957 | Headline Publications Inc. | MAGAZINE | 2 |
| July 1972 |
|
Su Marte segui il gatto | Mondadori | Collection | 111 |