http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f277-subject=Aggregates (Building materials) -- Testing) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f277-subject%3DAggregates%20(Building%20materials)%20--%20Testing Results for your query: docsPerPage=100;f277-subject=Aggregates (Building materials) -- Testing Thu, 01 Jan 1970 12:00:00 GMT Physical properties of carbonate aggregate from Ohio. Stith, David A., Ohio. Division of Geological Survey 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