<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'su:"CONCRETO armado" and itype:BK and su-to:construcciones de CONCRETO armado and itype:BK']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22CONCRETO%20armado%22%20and%20itype%3ABK%20and%20su-to%3Aconstrucciones%20de%20CONCRETO%20armado%20and%20itype%3ABK&format=rss2 13 0 50