The Silent Invaders
From Author Wars - https://authorwars.com/books/the-silent-invaders-929100.html
Overview:
- Title: The Silent Invaders
- Author: Robert Silverberg
- Year: 1985
- Type: Omnibuses
Editions/Publications:
- Unknown. The Silent Invaders (Unknown, Robert Silverberg, Tor, ISBN-10: 0812554604, $2.95, 216 pages, Paperback, Omnibus)