http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f8-subject=Bituminous coal industry) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f8-subject%3DBituminous%20coal%20industry Results for your query: docsPerPage=100;f8-subject=Bituminous coal industry Thu, 01 Jan 1970 12:00:00 GMT Relation of overdevelopment of the bituminous coal industry to transportation. Lesher, Carl Eugene, 1885- 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