The Alien Within

From Author Wars - https://authorwars.com/publications/the-alien-within-53576.html

Overview:

Title: The Alien Within
Author: Ben Bova
Year: 1987
ISBN-10: 0812532066
Publisher: Tor
Price: $3.50
Pages: 344
Binding: Paperback
Type: Novel
Title Reference: The Alien Within
Notes:
"First mass market printing: January 1987" First printing by number line "Cover art by Boris Vallejo" on copyright page, the artwork is also signed Canadian ISBN 0-812-53207-4 $4.50 in Canada