<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'su:"CONCRETO armado" and su-to:concreto and su-to:CONCRETO and itype:BK']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22CONCRETO%20armado%22%20and%20su-to%3Aconcreto%20and%20su-to%3ACONCRETO%20and%20itype%3ABK&format=rss2 86 0 50