Letters (Perry Rhodan #1556)
From Author Wars - https://authorwars.com/books/letters-perry-rhodan-1556-2678065.html
Editions/Publications:
- 1991 . Perry Rhodan, #1556: Schatten der Vergangenheit (1991, various, Pabel-Moewig, DM 2.20, 72+xii pages, digest, MAGAZINE)