https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Rumney%2C%20Jay%2C%22&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=54598 By Rumney, Jay,.
Buenos Aires : Paidós, 1980 .
235 p.

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=54598 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=54760 By Rumney, Jay,.
México : FCE, 1944 .
325 p

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