Letters (Perry Rhodan #620)

From Author Wars - https://authorwars.com/books/letters-perry-rhodan-620-1813490.html

Overview:

Title: Letters (Perry Rhodan #620)
Author: various
Year: 1973
Type: Essays

Editions/Publications:

1973 . Perry Rhodan, #620: Reise durch den Zeitstrom (1973, various, Pabel-Moewig, DM 1.20, 68 pages, digest, MAGAZINE)
1973 . Perry Rhodan, #386: Hilfe von Sol (1973, various, Pabel-Moewig, DM 1.20, 68 pages, digest, MAGAZINE)