https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Troya%2C%20Francisco%22&sort_by=title_az&format=rss 2 0 50 ISBN:8421829548 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=162561 ]]> By Troya, Francisco.
Barcelona, Esp. Magisterio Casals, 2003 .
150 p. : 8421829548

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=162561 ISBN:8421831399 (10 digitos) | 9788421831397 (13 digitos) https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=130887 By Troya, Francisco.
Barcelona [Esp.] : Casals, 2006 .
111 p. : 8421831399 (10 digitos) | 9788421831397 (13 digitos)

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=130887