| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1983 |
|
The Citadel of the Autarch | Sidgwick & Jackson | Novel | |
| November 1983 |
|
The Citadel of the Autarch | Arrow Books | Novel | |
| January 1991 |
|
The Bruce Pennington Portfolio | Paper Tiger / Dragon's World | Nonfiction | [55] |
| June 1992 |
|
Ultraterranium | Paper Tiger / Dragon's World | Nonfiction | 98 |
| February 1998 |
|
La cittadella dell'Autarca | Editrice Nord | Novel | |
| August 2014 |
|
Loncon 3: The 72nd World Science Fiction Convention | Loncon 3 | Nonfiction | 47|47.2 |