http://www.rssboard.org/rss-specification 720 XTF Search Results (f1-subject=United States -- Genealogy;f2-subject=Ethnic groups -- Statistics;f3-subject=United States -- Census, 21st, 1990) http://catalog.wrhs.org/collections/search?f1-subject%3DUnited%20States%20--%20Genealogy;f2-subject%3DEthnic%20groups%20--%20Statistics;f3-subject%3DUnited%20States%20--%20Census,%2021st,%201990 Results for your query: f1-subject=United States -- Genealogy;f2-subject=Ethnic groups -- Statistics;f3-subject=United States -- Census, 21st, 1990 Thu, 01 Jan 1970 12:00:00 GMT Census of population (1990). Supplementary reports. United States Bureau of the Census. http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202690320296824.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202690320296824.mrc Thu, 01 Jan 1970 12:00:00 GMT