| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1987 |
|
The Menace from Earth | Baen Books | Collection | |
| May 1987 |
|
The Menace from Earth | Baen Books | Collection | |
| February 1999 |
|
The Menace from Earth | Baen Books | Collection | |
| 2007 |
|
Time Travel | ABDO Publishing Company | Nonfiction | 28|28.7 |