Die heimlichen Invasoren

From Author Wars - https://authorwars.com/books/die-heimlichen-invasoren-2385600.html

Overview:

Title: Die heimlichen Invasoren
Author: Heinz Plehn
Year: 1971
Type: Reviews

Editions/Publications:

1971 . Mechaniker der Unsterblichkeit (1971, Heinz Plehn, Moewig, DM 1.00, 66 pages, digest, Novel)
1971 . Mechaniker der Unsterblichkeit (1971, H. S. Santesson, Moewig, DM 1.00, 66 pages, digest, Novel)