https://biblioteca.uaysen.cl/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Henn%2C%20Ronaldo%2C%22&format=rss2 5 0 50 ISBN 9788490642290 (e-book) https://biblioteca.uaysen.cl/cgi-bin/koha/opac-detail.pl?biblionumber=196702 By Henn, Ronaldo.. . 1 recurso en línea (150 páginas) , Incluye índice. 9788490642290 (e-book)

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