<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'Provider:McGraw-Hill and holdingbranch:001 and au:Bittel, Lester R']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AMcGraw-Hill%20and%20holdingbranch%3A001%20and%20au%3ABittel%2C%20Lester%20R&format=rss2 10 0 50