<![CDATA[Biblioteca Univ. Surcolombiana Search for 'Provider:McGraw Hill, and itype:CR and au:Williams, John Whitridge,']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AMcGraw%20Hill%2C%20%20and%20itype%3ACR%20and%20au%3AWilliams%2C%20John%20Whitridge%2C&format=rss2 2 0 50