Original version of the novel ''Pebble in the Sky''.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1986 |
|
The Alternate Asimovs | Doubleday | Collection | 5 |
| June 1987 |
|
The Alternate Asimovs | Grafton | Collection | |3 |
| October 1987 |
|
Asimov parallèle | J'ai Lu | Collection | 193 |
| April 1988 |
|
The Alternate Asimovs | Signet / New American Library of Canada | Collection | 17 |
| April 1988 |
|
The Alternate Asimovs | Signet / New American Library | Collection | 17 |
| November 1988 |
|
Urania #1087 | Mondadori | MAGAZINE | 6 |
| March 1991 |
|
The Alternate Asimovs | Roc / New American Library | Collection | 17 |