http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f159-subject=Airports -- United States -- Directories) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f159-subject%3DAirports%20--%20United%20States%20--%20Directories Results for your query: docsPerPage=100;f159-subject=Airports -- United States -- Directories Thu, 01 Jan 1970 12:00:00 GMT AOPA's aviation USA. Aircraft Owners and Pilots Association https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT AOPA airport directory. Aircraft Owners and Pilots Association https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT AOPA's airports U.S.A. Aircraft Owners and Pilots Association https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Your personal plane. Andrews, John Paul. https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Airports and established landing fields in the United States. https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT