http://www.rssboard.org/rss-specification 720 XTF Search Results (f1-format=Book;expand=subject;f2-subject=United States Population) http://catalog.wrhs.org/collections/search?f1-format%3DBook;expand%3Dsubject;f2-subject%3DUnited%20States%20Population Results for your query: f1-format=Book;expand=subject;f2-subject=United States Population Thu, 01 Jan 1970 12:00:00 GMT The American census: a social history. Anderson, Margo J., 1945- 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