http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f6-subject=Industries -- Pennsylvania) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f6-subject%3DIndustries%20--%20Pennsylvania Results for your query: docsPerPage=100;f6-subject=Industries -- Pennsylvania Thu, 01 Jan 1970 12:00:00 GMT Report on the productive industries of the commonwealth of Pennsylvania for 1916-1917-1918-1919. Pennsylvania Dept. of Internal Affairs. 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 Pittsburgh and western Pennsylvania: their industries and commerce, resources and prospects. Chamber of Commerce (Pittsburgh, Pa.) 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