Letters (Perry Rhodan #473)
From Author Wars - https://authorwars.com/books/letters-perry-rhodan-473-1910405.html
Editions/Publications:
- 1970 . Perry Rhodan, #473: Die verrückten Roboter (1970, various, Moewig, DM 1.00, 68 pages, digest, MAGAZINE)
- 1970 . Perry Rhodan, #239: Welt unter heißer Strahlung (1970, various, Moewig, DM 1.00, 68 pages, digest, MAGAZINE)