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