Eon

From Author Wars - https://authorwars.com/publications/eon-376860.html

Overview:

Title: Eon
Author: Greg Bear
Year: Unknown
ISBN-10: 0812520475
Publisher: Tor
Price: $7.99
Pages: 504
Binding: Paperback
Type: Novel
Title Reference: Eon
Notes:
"First Tor edition: August 1986"
Nineteenth printing per number line "20 19"