https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Espinoza%20Vergara%2C%20Mario%22&sort_by=title_az&format=rss 3 0 50 ISBN:9505821646 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=23271 ]]> By Espinoza Vergara, Mario.
Buenos Aires : Humanitas, 1986 .
218 p. : 9505821646

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=23271 ISBN:9505821077 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=101013 ]]> By Espinoza Vergara, Mario.
Buenos Aires : Hvmanitas, 1989 .
166 p. 9505821077

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