Later to be expanded into the NOVEL Give Warning to the World
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1959 |
|
Science Fantasy, August 1959 | Nova Publications Ltd. | MAGAZINE | 4 |
| September 1959 |
|
Echo in the Skull / Rocket to Limbo | Ace Books | Omnibus | 5 |
| June 1965 |
|
Das Echo aus dem All | Moewig | Chapbook | 5 |
| June 1970 |
|
S-Fマガジン 1970年06月号, #134 | 早川書房 | MAGAZINE | 164 |