Das Rätsel der UFOs

From Author Wars - https://authorwars.com/books/das-ratsel-der-ufos-2377588.html

Overview:

Title: Das Rätsel der UFOs
Author: Bill Adler
Year: 1969
Type: Non-fiction

Editions/Publications:

1969 . Das Rätsel der UFOs (1969, Bill Adler, Moewig, DM 2.40, 144 pages, Paperback, Non-fiction)