https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Wright%2C%20Charles%20Robert%2C%22&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=10391 By Wright, Charles Robert,.
Buenos Aires : Paidós, 1980 .
155 p

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=10391 ISBN:0226365492 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=19478 ]]> By Hyman, Herbert Hiram,.
Chicago, E.U.A. : University of Chicago, 1975 .
313 p. , Incluye apéndice p.126-309 | "Uno de los grandes trabajos sobre investigación educacional de los años 70s" 0226365492

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