http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f156-subject=Steel industry and trade -- Periodicals) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f156-subject%3DSteel%20industry%20and%20trade%20--%20Periodicals Results for your query: docsPerPage=100;f156-subject=Steel industry and trade -- Periodicals Thu, 01 Jan 1970 12:00:00 GMT Blast furnace and steel plant. 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 Iron trade review and western machinist. 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 The iron age. 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 Iron trade review. 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