https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Cont%C3%ADn%2C%20Agust%C3%ADn%22&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=109767 By Langer, Richard W..
México : Diana, 1978 .
389 p. :

]]> Place hold on Aprenda a cultivar /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=109767 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=205548 By Ben-David, Joseph, .
México : Trillas, 1974 .
247 p. , Traducción de: The scientist's role in society: a comparative study.

]]> Place hold on El papel de los científicos en la sociedad :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=205548