<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'su:"CONCRETO" and location:GEN and location:GEN and su-to:ESTRUCTURAS DE CONCRETO']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22CONCRETO%22%20and%20location%3AGEN%20and%20location%3AGEN%20and%20su-to%3AESTRUCTURAS%20DE%20CONCRETO&format=rss2 9 0 50