The Guardians

From Author Wars - https://authorwars.com/books/the-guardians-907432.html

Overview:

Title: The Guardians
Author: Kurt Mahr
Year: 1974
Type: Short Fiction

Editions/Publications:

Unknown. Perry Rhodan #58: The Guardians (Unknown, Kurt Mahr, Ace Books, $0.95, 164 pages, Paperback, MAGAZINE)