http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=Propulsion Laboratory (U.S.) -- History) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DPropulsion%20Laboratory%20(U.S.)%20--%20History Results for your query: docsPerPage=100;f4-subject=Propulsion Laboratory (U.S.) -- History Thu, 01 Jan 1970 12:00:00 GMT Engines and innovation: Lewis Laboratory and American Propulsion Technology. Dawson, Virginia P. (Virginia Parker), United States National Aeronautics and Space Administration. Scientific and Technical Information 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