http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f70-subject=United States -- History -- 20th century -- Library resources) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f70-subject%3DUnited%20States%20--%20History%20--%2020th%20century%20--%20Library%20resources Results for your query: docsPerPage=100;f70-subject=United States -- History -- 20th century -- Library resources Thu, 01 Jan 1970 12:00:00 GMT A guide to resources for the study of the recent history of the United States in the libraries of the University of Iowa, the State Historical Society of Iowa, and in the Herbert Hoover Presidential Library. Swigger, Boyd Keith, 1943- 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