Letters (Perry Rhodan #649)
From Author Wars - https://authorwars.com/books/letters-perry-rhodan-649-1771129.html
Editions/Publications:
- 1974 . Perry Rhodan, #649: Schach der Finsternis (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #415: Freunde aus einem fremden Universum (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)