https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Lefranc%2C%20Robert%2C%22&sort_by=title_az&format=rss 3 0 50 ISBN:9682103517 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=43418 ]]> México : Roca, 1984 .
166 p. 9682103517

]]> Place hold on Panorama de la enseñanza en el mundo /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=43418 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=55693 By Lefranc, Robert,.
Buenos Aires : El Ateneo, 1973 .
309 p. :

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