<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'an:"2268" and holdingbranch:001 and se:Norma Técnica Colombiana and au:Instituto Colombiano de Normas Técnicas y Certificación - ICONTEC']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%222268%22%20and%20holdingbranch%3A001%20and%20se%3ANorma%20T%C3%83%C2%A9cnica%20Colombiana%20and%20au%3AInstituto%20Colombiano%20de%20Normas%20T%C3%83%C2%A9cnicas%20y%20Certificaci%C3%83%C2%B3n%20-%20ICONTEC&format=rss2 0 20