| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1986 |
|
Callahan's Secret | Berkley Books | Collection | |
| August 1986 |
|
Callahan's Secret | Berkley Books | Collection | |
| December 1986 |
|
Callahan's Secret | Berkley Books | Collection | |
| January 1988 |
|
Callahan's Secret | Ace Books | Collection | |
| August 1990 | Callahan's Secret | Ace Books | Collection | ||
| 1992 |
|
Gurps Callahan's Crosstime Saloon | Steve Jackson Games | Nonfiction | |
| 1995 |
|
James Warhola Fantasy Art Trading Cards | Friedlander Publishing Group | Nonfiction | 80 |