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<![CDATA[Biblioteca Univ. Surcolombiana Search for '(su,complete-subfield:{PetrÃ³leo - ExtracciÃ³n }) AND (su,complete-subfield:{Bombeo electrosumergible})']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=%28su%2Ccomplete-subfield%3A%7BPetr%C3%83%C2%B3leo%20-%20Extracci%C3%83%C2%B3n%20%7D%29%20AND%20%28su%2Ccomplete-subfield%3A%7BBombeo%20electrosumergible%7D%29&format=rss2 0 20