<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'su:"CONCRETO" and au:Nilson, Arthur H and se:McGraw Hill Civil Engineering']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22CONCRETO%22%20and%20au%3ANilson%2C%20Arthur%20H%20and%20se%3AMcGraw%20Hill%20Civil%20Engineering&format=rss2 2 0 50