UG — Audiobooks
Elements of Trench Warfare
by William H. (William Henry) Waldron
Die Festungen gegenüber den gezogenen Geschützen
by M. von (Moritz) Prittwitz
Aeroplanes and Dirigibles of War
by Frederick Arthur Ambrose Talbot
Specimens of British Trench Orders
by Army War College (U.S.)
Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons
by Willis J. (Willis John) Abbot
Bailey's Dam
by Steven D. Smith, George J. Castille
Motorcycle, Solo (Harley-Davidson Model WLA)
by United States. War Department
Engineer Port Repair Ship
by United States. War Department
Use of Mines in Trench Warfare (From the French School of St. Cyr)
by Army War College (U.S.)
War in Heaven
by Fletcher Pratt
Handy War Guide for My Company: Handy Company Commander's Guide
by André Godefroy Lionel Hanguillart
Technical School, Sioux Falls Army Air Field
by Northwestern Bell Telephone Company
Portable Flame Thrower M2-2
by United States. War Department
Annals of a Fortress
by Eugène-Emmanuel Viollet-le-Duc
The Way of the Air: A Description of Modern Aviation
by Edgar Charles Middleton
Aircraft in war
by Eric Stuart Bruce
Balloon observation, and instructions on the subject of work in the basket
by United States. War Department. Division of Military Aeronautics
English Coast Defences From Roman Times to the Early Years of the Nineteenth Century
by George Clinch
Bombers' Training, and Application of Same in Trench Warfare
by Lieutenant J. R. Ferris
History of the Royal Sappers and Miners, Volume 1 (of 2) From the Formation of the Corps in March 1712 to the date when its designation was changed to that of Royal Engineers
by T. W. J. (Thomas William John) Connolly
The Aeroplane in War
by Claude Grahame-White, Harry Harper
Visual Signaling
by United States. Army. Signal Corps
Training for the Trenches A Practical Handbook Based upon Personal Experience During the First Two Years of the War in France
by Leslie Vickers
Trench Warfare: A Manual for Officers and Men
by Joseph S. (Joseph Shuter) Smith
History of the Royal Sappers and Miners, Volume 2 (of 2) From the Formation of the Corps in March 1712 to the date when its designation was changed to that of Royal Engineers
by T. W. J. (Thomas William John) Connolly
Tactics and duties for trench fighting
by Georges Etienne Bertrand, Oscar N. Solbert
The Riddle of the Rhine: Chemical Strategy in Peace and War
by Victor Lefebure
Chemical warfare
by Amos A. (Amos Alfred) Fries, Clarence J. (Clarence Jay) West
Gas and flame in modern warfare
by Samuel James Manson Auld
Ditching Procedure, B-29s with Four-Gun Turret
by United States. Army Air Forces
Survival at Altitude for Heavy and Very Heavy Bomber Crews
by 2nd. Altitude Indoctrination Unit United States. Army Air Forces. Air Force
Manual for submarine mining
by United States. War Department
Callinicus : A defence of chemical warfare
by J. B. S. (John Burdon Sanderson) Haldane