| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1973 |
|
The Eternal Frontiers | G. P. Putnam's Sons | Novel | |
| November 1973 |
|
The Eternal Frontiers | Berkley Medallion | Novel | 5 |
| November 1973 |
|
The Eternal Frontiers | Berkley Medallion | Novel | 5 |
| 1974 |
|
The Eternal Frontiers | Sidgwick & Jackson | Novel | |
| February 1975 |
|
Welt im Würgegriff | Ullstein | Novel | |
| July 1976 |
|
Science Fiction Special (18) | Sidgwick & Jackson | Omnibus | |
| September 2002 |
|
Eternal Frontier | Baen Books | Collection | 421 |
| September 2002 |
|
Eternal Frontier | Baen Books | Collection | |
| March 2004 |
|
Eternal Frontier | Baen Books | Collection | 571 |