| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| December 1964 |
|
The Day the Machines Stopped | Monarch Books (USA) | Novel | 5 |
| February 1966 |
|
Alle Räder standen still | Pabel | Novel | 3 |
| March 1966 |
|
Urania #427 | Mondadori | MAGAZINE | 3 |
| February 1991 |
|
Quando le macchine si fermeranno | Mondadori | Novel | 11 |
| October 2010 |
|
The Power of Illusion | Baen Books | Collection | 55 |
| October 2010 |
|
The Power of Illusion | Baen Books | Collection | |
| November 2011 |
|
The Power of Illusion | Baen Books | Collection | 71 |
| January 2012 |
|
The Power of Illusion | Baen Books / SFBC | Collection | 71 |