Die Zyklen
From Author Wars - https://authorwars.com/books/die-zyklen-2290546.html
Editions/Publications:
- 1978 . Perry Rhodan, #15: Die Spur durch Zeit und Raum (1978, W. Voltz, Pabel-Moewig, DM 1.50, 68 pages, digest, MAGAZINE)
From Author Wars - https://authorwars.com/books/die-zyklen-2290546.html