| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1959 |
|
One Against Herculum / Secret of the Lost Race | Ace Books | Omnibus | |
| 1960 |
|
World of the Gods | Badger | Novel | |
| May 1960 |
|
Das Geheimnis der Verlorenen | Pabel | Novel | |
| April 1967 |
|
¡Galaxia en peligro! | Organizacion Editorial Novaro | Novel | |
| July 1969 |
|
Secret of the Lost Race | Ace Books | Novel | |
| December 2013 |
|
World of the Gods | Gateway / Orion | Novel |