<![CDATA[Biblioteca Univ. Surcolombiana Search for 'callnum:"620.103 / B415m " and au:Beer, Ferdinand P.']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=callnum%3A%22620.103%20%2F%20B415m%20%22%20and%20au%3ABeer%2C%20Ferdinand%20P.&format=rss2 3 0 50