The Long War

From Author Wars - https://authorwars.com/publications/the-long-war-417701.html

Overview:

Title: The Long War
Author: Terry Pratchett, Stephen Baxter
Year: 2013
Publisher: Harper / SFBC
Price: $14.99
Pages: 400
Binding: Hardcover
Type: Novel
Title Reference: The Long War
Notes: Info from SFBC.com