| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1949 |
|
Time Trap | Century Publications | Novel | |
| May 1950 |
|
Time Trap | News Stand Library | Novel | |
| 1954 |
|
Piège dans le temps | Fleuve Noir | Novel | |
| June 1955 |
|
I Romanzi di Urania #82 | Mondadori | MAGAZINE | 3 |
| 1956 |
|
Time Trap | Atlas Publications | Novel | |
| 1958 |
|
Die Zeitfalle | Hönne / Gebrüder Zimmermann | Novel | |
| April 1960 |
|
Die Zeitfalle | Moewig | Novel | 1 |
| April 1979 |
|
Trappola nel tempo | Libra Editrice | Novel | 11 |
| October 2005 |
|
Trappole nel tempo | Mondadori | Omnibus | 91 |
| January 2014 |
|
Time Trap / The Cosmic Destroyer | Armchair Fiction | Omnibus |