1.
Zimmerman Telegram : Intelligence, Diplomacy, and America's Entry into World War I
by Boghardt, Thomas
ISBN: 9781612511481
List Price: $27.95
2.
Spies of the Kaiser German Covert Operations in Great Britain During the First World War Era
by Boghardt, Thomas
ISBN: 9781403932488
List Price: $79.95
3.
U. S. Army Intelligence in Germany, 1944-1949
by Boghardt, Thomas
ISBN: 9783110999259
List Price: $103.99