Queen's gift book : in aid of Queen Mary's convalescent auxiliary hospitals for soldiers and sailors who have lost their limbs in the war Made in the trenches : composed entirely from articles and sketches contributed by soldiers / Frederick Treves ... and George Goodchild Per ardua : the rise of British air power, 1911-1939 Vliegtuigen van de wereld Pictorial history of the RAF / John William Ransom Taylor : Vol. 1: 1918-1939 leger der schaduw / Joseph Kessel
