https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Reuni%C3%B3n%20de%20expertos%20internacionales%20sobre%20la%20educaci%C3%B3n%20secundaria%20en%20el%20siglo%20XXI%22&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=215242 Paris : Unesco, 2001 .
54 páginas

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58 páginas

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