http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f70-subject=Economics Laboratory, inc. -- History) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f70-subject%3DEconomics%20Laboratory,%20inc.%20--%20History Results for your query: docsPerPage=100;f70-subject=Economics Laboratory, inc. -- History Thu, 01 Jan 1970 12:00:00 GMT "Products and services for a cleaner world": the story of Economics Laboratory, Inc. Lanners, Fred T. 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