https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Trejo%2C%20C%C3%A9sar%20A.%2C%22&sort_by=title_az&format=rss 3 0 50 ISBN:9501333019 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=2791 ]]> By Rey Pastor, Julio.
Buenos Aires : Kapelusz, 1965 .
3 v. 9501333019

]]> Place hold on Análisis matemático /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=2791 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=19563 By Trejo, César A..
Buenos Aires : Kapelusz, 1973 .
124 p. :

]]> Place hold on El enfoque conjuntista en la enseñanza de la matemática /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=19563 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=37375 By Trejo, César A..
Buenos Aires : Kapelusz, 1965 .
2 v.

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