| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1988 |
|
Amazing Stories, November 1988 | TSR | MAGAZINE | |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 373 |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 373 |
| 2011 | At the Human Limit | Haffner Press | Collection | fep | |
| April 2011 |
|
At the Human Limit | Haffner Press | Collection | fep |