https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=copydate%3A%221972-%22&sort_by=title_az&format=rss 1612 0 20 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=138365 Paris : | Geneva : UNESCO; | IBE, 1972 .
121 p. ;

]]> Place hold on A statistical study of wastage at school.

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=138365 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=128888 París : UNESCO, 1972 .
148 p.

]]> Place hold on A World of children's books: a selective international bibliography =

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=128888 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=187 By Clauser, Friedrich Wilhelm Günter,.
Barcelona [Esp.] : Herder, 1972 .
383 p. :

]]> Place hold on ABC de los padres /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=187 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=205 By Schwarz, Paul A..
New York : Praeger, 1972 .
224 p.

]]> Place hold on Ability testing in developing countries :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=205 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=236 By Brunetto Paladino, Guido.
Buenos Aires : Kapelusz, 1972 .
78 p.

]]> Place hold on El absolutismo /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=236 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=294 Pátzcuaro, Mich. : CREFAL, 1972 .
53 p., [2] h. pleg. :

]]> Place hold on Acción del CREFAL en América Latina :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=294 ISBN:901225762 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=398 By Sumner, R..
London : NFER, 1972 .
208 p. : 901225762

]]> Place hold on Achievement in secondary school :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=398 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=406 By Domínguez, I..
Buenos Aires : Kapelusz, 1972 .
39 p.

]]> Place hold on Los acontecimientos de actualidad y su utilización en la tarea del aula /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=406