Operation Schwerkraft
From Author Wars - https://authorwars.com/books/operation-schwerkraft-1685625.html
Overview:
- Title: Operation Schwerkraft
- Author: Jack Williamson
- Year: 1980
- Type: Short Fiction
Editions/Publications:
- Unknown. Die besten Stories von Jack Williamson (Unknown, Jack Williamson, Moewig, ISBN-10: 3811867059, DM 7.80, 416 pages, Paperback, Collection)