https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Sund%2C%20Robert%20B.%2C%22&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=19915 By Carin, Arthur A..
México : Centro Regional de Ayuda Técnica : | AID : | Guadalupe, 1975 .
354 p. :

]]> Place hold on La enseñanza de la ciencia moderna /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=19915 ISBN:9682405149 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=42240 ]]> By Sund, Robert B..
México : Trillas, 1976 .
230 p. gráfs. 9682405149

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