XTF Search Results (docsPerPage=100;f4-subject=United States. -- Aircraft Warning Service. -- Ground Observer Corps)

http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=United States. -- Aircraft Warning Service. -- Ground Observer Corps) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DUnited%20States.%20--%20Aircraft%20Warning%20Service.%20--%20Ground%20Observer%20Corps Results for your query: docsPerPage=100;f4-subject=United States. -- Aircraft Warning Service. -- Ground Observer Corps Thu, 01 Jan 1970 12:00:00 GMT Aircraft recognition for the ground observer. United States Department of the Air Force, 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