http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f143-subject=Natural resources -- Michigan) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f143-subject%3DNatural%20resources%20--%20Michigan Results for your query: docsPerPage=100;f143-subject=Natural resources -- Michigan Thu, 01 Jan 1970 12:00:00 GMT The undeveloped regions and resources of the state of Michigan. Duffield, D. Bethune (Divie Bethune), 1821-1891 http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT