https://biblioteca.uaysen.cl/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Porres%20Arellano%2C%20Juan%20Fernando.%22&format=rss2 5 0 50 ISBN 9789877602968 https://biblioteca.uaysen.cl/cgi-bin/koha/opac-detail.pl?biblionumber=210907 By Porres Arellano, Juan Fernando.. . 1 recurso en línea (158 páginas) 9789877602968

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