http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;smode=simple;subject=Aeronautics, Commercial -- Economic aspects -- United States;subject-join=exact) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;smode%3Dsimple;subject%3DAeronautics,%20Commercial%20--%20Economic%20aspects%20--%20United%20States;subject-join%3Dexact Results for your query: docsPerPage=100;smode=simple;subject=Aeronautics, Commercial -- Economic aspects -- United States;subject-join=exact Thu, 01 Jan 1970 12:00:00 GMT The aviation industry. Harding, William Barclay, 1906-, Chas. D. Barney & Co 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