https://biblioteca.cun.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Callejas%20Ram%C3%ADrez%2C%20Juan%20Gonzalo%2C%22&sort_by=relevance&format=rss 4 0 50 ISBN:9789587573251 https://biblioteca.cun.edu.co/cgi-bin/koha/opac-detail.pl?biblionumber=74179 By Callejas Ramírez, Juan Gonzalo,.
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1 online resource. 9789587573251

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1 online resource. 9789587573268

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1 online resource. 9789587573848

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