https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Beckhard%2C%20Richard%2C%22&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=9639 By Beckhard, Richard,.
Buenos Aires : Bibliográfica Omeba, 1966 .
79 p.

]]> Place hold on Cómo planear y dirigir seminarios y congresos /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=9639 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=14341 By Beckhard, Richard,.
Bogotá : Fondo Educativo Interamericano, 1973 .
140 p.

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