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<![CDATA[Biblioteca Univ. Surcolombiana Search for 'au:Chang, Raymond and itype:CG and su-to:Quimica and au:Ãlvarez Manzo, Rodolfo']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=au%3AChang%2C%20Raymond%20and%20itype%3ACG%20and%20su-to%3AQuimica%20and%20au%3A%C3%83%C2%81lvarez%20Manzo%2C%20Rodolfo&format=rss2 0 20