| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1974 |
|
Time War | Dell | Novel | 7 |
| November 1974 |
|
Time War | Dell | Novel | 7 |
| 1975 |
|
Der Zeitkämpfer | Bastei Lübbe | Novel | |
| March 2018 |
|
Time War | Wildside Press | Novel | |
| October 2019 |
|
Time War | Gateway / Orion | Novel | |
| June 2020 |
|
Staying in Place: An Anthology of Stories to Pass the Time | Wildside Press | Anthology | |21 |