http://catalogo.fi.uba.ar/cgi-bin/koha/opac-search.pl?q=ccl=an%3A22102%20and%20itype%3AREF%20and%20su-to%3ASISTEMAS%20TELEFONICOS&format=rss2 3 0 50 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=3588 By Rocha, Luis Florentino. Buenos Aires : UBA, 1991 . sin pag. 30 cm.

]]> http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=3588 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=2044 By Calvo Ramón, Miguel. Buenos Aires : s.n., 1995 . pag.var. : 29 cm.

]]> http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=2044 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=2043 By Montero del Pino, Manuel. Buenos Aires : s.n., 1995 . v. : 29 cm.

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