| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1976 |
|
De ring van Ritornel | Meulenhoff | Novel | |
| June 1976 |
|
The Undercover Aliens | Panther | Novel | |
| October 1977 |
|
La svastica sul sole | Editrice Nord | Novel | |
| 1980 |
|
The Undercover Aliens | Panther | Novel | |
| 1980 |
|
Solar Wind | Perigee Paper Tiger | Nonfiction | 73 |
| 1980 |
|
Solar Wind | Paper Tiger | Nonfiction | 73|73.4 |
| January 1989 |
|
Lotta per la galassia: e altri racconti | Fanucci Editore | Collection | |
| 1994 |
|
Solar Wind | Paper Tiger | Nonfiction | 73|73.4 |