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<![CDATA[Biblioteca Univ. Surcolombiana Search for '(su,complete-subfield:{Oil well drilling}) AND (su,complete-subfield:{handbooks})']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=%28su%2Ccomplete-subfield%3A%7BOil%20well%20drilling%7D%29%20AND%20%28su%2Ccomplete-subfield%3A%7Bhandbooks%7D%29&format=rss2 0 20