| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1960 |
|
The World in Peril | Herbert Jenkins | Novel | |
| 1962 |
|
The World in Peril | Pan Books | Novel | |
| 1962 | The World in Peril | Herbert Jenkins | Novel | ||
| 1962 |
|
Aanval op de Aarde | Elsevier | Novel | |
| 1965 |
|
Svijet u opasnosti | Epoha | Novel | 5 |
| August 2011 |
|
The World in Peril | BBC Audiobooks | Novel | |
| October 2012 |
|
The World in Peril | Fantom Films Limited | Novel | |
| October 2021 |
|
Journey into Space: The Complete Trilogy | Fantom Films Limited | Omnibus | |3 |