The Immortal Unknown
| First published | May 1972 |
|---|---|
| Type | Editor |
| Series | Perry Rhodan in English › Perry Rhodan (US) #13 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1972 |
|
Perry Rhodan #13: The Immortal Unknown | Ace Books | MAGAZINE | |
| 1974 |
|
Perry Rhodan #13: The Immortal Unknown | Ace Books | MAGAZINE |