http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f1-subject=World War, 1914-1918 -- Aerial operations;smode=advanced;subject=Aeronautics, Military -- United States;subject-join=exact) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;f1-subject%3DWorld%20War,%201914-1918%20--%20Aerial%20operations;smode%3Dadvanced;subject%3DAeronautics,%20Military%20--%20United%20States;subject-join%3Dexact Results for your query: docsPerPage=100;f1-subject=World War, 1914-1918 -- Aerial operations;smode=advanced;subject=Aeronautics, Military -- United States;subject-join=exact Thu, 01 Jan 1970 12:00:00 GMT Air service, American expeditionary force, 1918. Toulmin, Harry Aubrey, 1890- http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Wings of war: an account of the important contribution of the United States to aircraft invention, engineering, development and production during the world war. Knappen, Theodore Macfarlane, 1871-1938 http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT