Letters (Perry Rhodan #664)
From Author Wars - https://authorwars.com/books/letters-perry-rhodan-664-1787286.html
Editions/Publications:
- 1974 . Perry Rhodan, #664: Tunnel durch die Zeit (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #430: Das Ultimatum der Cappins (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
- 1974 . Perry Rhodan, #67: Zwischenspiel auf Siliko V (1974, various, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)