Letter (Perry Rhodan #600)
From Author Wars - https://authorwars.com/books/letter-perry-rhodan-600-2662483.html
Editions/Publications:
- 1989 . Perry Rhodan, #600: Die unsichtbare Grenze (1989, various, Pabel-Moewig, DM 3.00, 68+68 pages, digest, MAGAZINE)
- 1989 . Perry Rhodan, #340: Kreuzwege im Kosmos (1989, various, Pabel-Moewig, DM 2.20, 68 pages, digest, MAGAZINE)