Letters (Perry Rhodan #657)
From Author Wars - https://authorwars.com/books/letters-perry-rhodan-657-1773692.html
Editions/Publications:
- 1974 . Perry Rhodan, #657: Der Arkturus-Zwischenfall (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #423: Sonderkommando Atlan (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #60: Festung Atlantis (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)