Apparently NOT a fix-up novel.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1970 |
|
Children of Tomorrow | Ace Books | Novel | 5 |
| 1972 |
|
Children of Tomorrow | Sidgwick & Jackson | Novel | |
| May 1973 | Science Fiction Special (6) | Sidgwick & Jackson | Omnibus | ||
| May 1973 |
|
Children of Tomorrow | New English Library | Novel | |
| July 1973 |
|
Children of Tomorrow | New English Library | Novel | |
| February 1975 |
|
Children of Tomorrow | Ace Books | Novel | 5 |
| April 1980 |
|
Children of Tomorrow | New English Library | Novel |