XTF Search Results (docsPerPage=100;smode=advanced;subject=Aerial observation (Military science);subject-join=exact)

http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;smode=advanced;subject=Aerial observation (Military science);subject-join=exact) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;smode%3Dadvanced;subject%3DAerial%20observation%20(Military%20science);subject-join%3Dexact Results for your query: docsPerPage=100;smode=advanced;subject=Aerial observation (Military science);subject-join=exact Thu, 01 Jan 1970 12:00:00 GMT Military observation balloons (captive and free): a complete treatise on their manufacture, equipment, inspection, and handling, with special instructions for the training of a field balloon company. Widmer, Emil Joseph, 1889- 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