<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'Provider:Escuela Colombiana de Ingeniería and itype:TE and au:Quiroga Saavedra, Pedro Nel, dir and itype:TE and su-to:ESTRUCTURAS DE CONCRETO']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AEscuela%20Colombiana%20de%20Ingenier%C3%83%C2%ADa%20and%20itype%3ATE%20and%20au%3AQuiroga%20Saavedra%2C%20Pedro%20Nel%2C%20dir%20and%20itype%3ATE%20and%20su-to%3AESTRUCTURAS%20DE%20CONCRETO&format=rss2 0 20