http://opac.berlin.bard.edu//cgi-bin/koha/opac-search.pl?q=ccl=%28su-na%3D%7BPolitical%20science%7D%29%20AND%20%28su-na%3D%7BHistory.%7D%29%20AND%20%28su-na%3D%7BUnited%20States%7D%29&format=rss2
0
20