Letters (Perry Rhodan #431)
From Author Wars - https://authorwars.com/books/letters-perry-rhodan-431-1861510.html
Editions/Publications:
- 1969 . Perry Rhodan, #431: Energie aus dem Jenseits (1969, various, Moewig, DM 0.90, 68 pages, digest, MAGAZINE)
- 1969 . Perry Rhodan, #197: Höllentanz der Riesen (1969, various, Moewig, DM 0.90, 68 pages, digest, MAGAZINE)