Barrier Unknown
| First published | 1960 |
|---|---|
| Publisher | Badger |
| Format | Paperback |
| Type | Novel |
| Catalog ID | SF30 |
| Cover art | Carlo Jacono |
| Pages | 142 |
| Price | 2/- |
• Cover is signed but uncredited.
• Same cover of Urania #183
| Title | Year | Publisher | Format | Type | Catalog ID | Cover Artist | Pages | |
|---|---|---|---|---|---|---|---|---|
| Barrier Unknown |
|
1964 | Arcadia House | Hardcover | Novel | 192 | ||
| Barrier Unknown |
|
2015 | Gateway / Orion | eBook | Novel | Carlo Jacono |