Una questione di istinto
| First published | October 1965 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
{{Tr|Beata Della Frattina}}
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1965 |
|
Urania #405 | Mondadori | MAGAZINE | 64 |
| November 1978 |
|
Millemondinverno 1978: 2 romanzi e 7 racconti di Eric Frank Russell | Mondadori | Omnibus | 353 |