http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;expand=subject;f1-subject=Aeronautics -- Bibliography;f2-subject=Aeronautics -- Film catalogs;freeformQuery=government) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;expand%3Dsubject;f1-subject%3DAeronautics%20--%20Bibliography;f2-subject%3DAeronautics%20--%20Film%20catalogs;freeformQuery%3Dgovernment Results for your query: docsPerPage=100;expand=subject;f1-subject=Aeronautics -- Bibliography;f2-subject=Aeronautics -- Film catalogs;freeformQuery=government Thu, 01 Jan 1970 12:00:00 GMT Aeronautics and space bibliography for the elementary grades. National Aerospace Education Council (U.S.), United States National Aeronautics and Space Administration. 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