http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f11-subject=Airplanes -- Recognition) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f11-subject%3DAirplanes%20--%20Recognition Results for your query: docsPerPage=100;f11-subject=Airplanes -- Recognition Thu, 01 Jan 1970 12:00:00 GMT Aircraft recognition. United States Office of the Chief of Naval Operations. Aviation Training Division. 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 A field guide to airplanes of North America. Montgomery, M. R., Foster, Gerald L. 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 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 Aircraft spotters' guide. Hartney, Harold Evans, 1888-1945, National Aeronautics Council (U.S.) 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 Recognition pictorial manual. United States Navy Department. Bureau of Aeronautics. Training Division. 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