http://www.rssboard.org/rss-specification 720 XTF Search Results (subject=African Americans -- Migrations -- History -- 20th century;subject-join=exact;brand=default;f1-subject=African Americans -- Migrations -- History -- 20th century;f2-subject=Migration, Internal -- United States -- History -- 20th century) http://catalog.wrhs.org/collections/search?subject%3DAfrican%20Americans%20--%20Migrations%20--%20History%20--%2020th%20century;subject-join%3Dexact;brand%3Ddefault;f1-subject%3DAfrican%20Americans%20--%20Migrations%20--%20History%20--%2020th%20century;f2-subject%3DMigration,%20Internal%20--%20United%20States%20--%20History%20--%2020th%20century Results for your query: subject=African Americans -- Migrations -- History -- 20th century;subject-join=exact;brand=default;f1-subject=African Americans -- Migrations -- History -- 20th century;f2-subject=Migration, Internal -- United States -- History -- 20th century Thu, 01 Jan 1970 12:00:00 GMT