| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1988 |
|
The Legion at War | Ace Books | Novel | vii |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 123 |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 123 |