https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Perera%2C%20Hilda%22&sort_by=title_az&format=rss 3 0 50 ISBN:8424132718 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=113054 ]]> By Perera, Hilda.
Madrid : Everest, 1997 .
60 p. : 8424132718

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=113054 ISBN:9681642341 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=44253 ]]> By Perera, Hilda.
México : FCE, 1994 .
111 p. : 9681642341

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=44253 ISBN:8424132742 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=142831 ]]> By Perera, Hilda.
León, Esp. : Everest, 2000 .
77, [7] p. : 8424132742

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