Operation Gravity
From Author Wars - https://authorwars.com/books/operation-gravity-1545248.html
Overview:
- Title: Operation Gravity
- Author: Jack Williamson
- Year: 1953
- Type: Short Fiction
Editions/Publications:
- Unknown. The Best of Jack Williamson (Unknown, Jack Williamson, Del Rey / Ballantine, ISBN-10: 0345313437, $2.95, xiv+386 pages, Paperback, Collection)