Le presenze invisibili
| First published | February 1955 |
|---|---|
| Type | Short Fiction |
| Length | Novelette |
{{Tr|an uncredited translator}}
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1955 |
|
I Romanzi di Urania #72 | Mondadori | MAGAZINE | 106 |