<![CDATA[Biblioteca Univ. Surcolombiana Search for '(su,complete-subfield:{Pozos petroleros - Mantemiento y reparación }) AND (su,complete-subfield:{Cemento Portland})']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=%28su%2Ccomplete-subfield%3A%7BPozos%20petroleros%20-%20Mantemiento%20y%20reparaci%C3%83%C2%B3n%20%7D%29%20AND%20%28su%2Ccomplete-subfield%3A%7BCemento%20Portland%7D%29&format=rss2 0 20