<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'su:"CONCRETO" and au:Nilson, Arthur H and su-to:ESTRUCTURAS DE CONCRETO and holdingbranch:003 and au:Winter, George and su-to:Diseño de estructuras']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22CONCRETO%22%20and%20au%3ANilson%2C%20Arthur%20H%20and%20su-to%3AESTRUCTURAS%20DE%20CONCRETO%20and%20holdingbranch%3A003%20and%20au%3AWinter%2C%20George%20and%20su-to%3ADise%C3%83%C2%B1o%20de%20estructuras&format=rss2 0 20