https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Polner%2C%20Murray%22&sort_by=title_az&format=rss 3 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=90228 By Schain, Robert L..
México : UTEHA, 1968 .
98 p.

]]> Place hold on Empleo de una disciplina eficaz para el mejor gobierno de la clase /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=90228 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=37901 By Polner, Murray.
México : UTEHA, 1960 .
94 p.

]]> Place hold on Mejoramiento de los estudios sociales /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=37901 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=42456 By Schain, Robert L..
México : UTEHA, 1968 .
105 p.

]]> Place hold on Obtención y empleo de medios de enseñanza económicos y gratuitos /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=42456