Reference

Instrument of War: The German Army 1914-18

Empires in World War I: Shifting Frontiers and Imperial Dynamics in a Global Conflict

The British Imperial Army in the Middle East: Morale and Military Identity in the Sinai and Palestine Campaigns, 1916-1918

Over the Top: Alternate Histories of the First World War

World War I: The Definitive Encyclopedia and Document Collection (5 volumes)

And the World Went Dark: An Illustrated Interpretation of the Great War

The Russian Army in the Great War: The Eastern Front, 1914-1917

Armies of the Great War: The French Army and the First World War

Armies of the Great War: The British Army and the First World War

Armies of the Great War: The American Army and the First World War

Germany’s Western Front: Translations from the German Official History of the Great War

Letters From the Boys: Wisconsin World War I Soldiers Write Home

The Great War Comes to Wisconsin: Sacrifice, Patriotism, and Free Speech in a Time of Crisis

Unheard Voices, Untold Stories

World War I Memories: An Annotated Bibliography of Personal Accounts Published in English Since 1919

The Military Atlas of World War I

The Battle Book of Ypres: A Reference to Military Operations in the Ypres Salient, 1914-18

Middlebrook Guide to the Somme Battlefields

Sergeant York of the Argonne Tour Guide

Somme 1916: A Battlefield Companion

A Military Atlas of the First World War

Who’s Who in World War One

First Great Triumph: How Five Americans Made Their Country a World Power

Researching World War I: A Handbook

Battlefilm: U.S. Army Signal Corps Motion Pictures of the Great War

Military History on the Web

The Routledge Atlas of the First World War

World War I Almanac

The A to Z of World War I

American Military Cemeteries

The Illustrated Encyclopedia of Uniforms of World War I: An expert guide to the uniforms of Britain, France, Russia, America, Germany and Austro-Hungary with over 450 colour illustrations

The United States in World War I: A Bibliographic Guide

The Canadian Experience of the Great War: A Guide to Memoirs