https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AClearing%20House%2C%20Department%20of%20Mass%20Communication%2C&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=137225 Paris : UNESCO : | Clearing House, Department of Mass Communication, 1957 .
56 p. : , "Reports and papers on mass communication. November 1957 no.24"

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=137225 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=194360 Paris : UNESCO : | Clearing House, Department of Mass Communication, 1957 .
35 p. , "Reports and papers on mass communication. June 1957 no.22"

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