| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1967 |
|
Bright New Universe | Ace Books | Novel | 5 |
| March 1969 |
|
Bright New Universe | Sidgwick & Jackson | Novel | |
| August 1969 |
|
Galassia, #104 | Casa Editrice La Tribuna | MAGAZINE | 4 |
| October 1970 | Science Fiction Special (2) | Sidgwick & Jackson | Omnibus | ||
| August 1975 | Science Fiction Special (15) | Sidgwick & Jackson | Omnibus | ||
| May 1979 |
|
Der galaktische Kontakt | Pabel | Novel | |
| June 2013 |
|
Bright New Universe | Gateway / Orion | Novel | |
| June 2024 |
|
Humanoids Series & More | Omnibus | |19 |