Directive 51

From Author Wars - https://authorwars.com/publications/directive-51-338591.html

Overview:

Title: Directive 51
Author: John Barnes
Year: 2011
ISBN-10: 9780441020416
Publisher: Ace Books
Price: $7.99
Pages: 497
Binding: Paperback
Type: Novel
Title Reference: Directive 51
Notes:
"Ace mass-market edition / March 2011" First printing by number line 10—1 "Cover art by Craig White" on copyright page, no visible signature on the cover [which is as pale as the scan indicates] $9.99 in Canada