http://catalogo.fi.uba.ar/cgi-bin/koha/opac-search.pl?q=ccl=callnum%3A%22658%2C%20P266%22%20and%20su-to%3ARELACIONES%20LABORALES&format=rss2 4 0 50 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15846 By Pardo, Juan A.. Buenos Aires : CEI, 1967 . 159 p. : , Sumario 24 cm..

]]> http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15846 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15850 By Pardo, Juan A.. Buenos Aires : CEI, 1967 . 101 p. : , Sumario 24 cm..

]]> http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15850 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15852 By Pardo, Juan A.. Buenos Aires : CEI, 1968 . 227 p. : , Sumario 24 cm..

]]> http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15852 ISBN http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=15857 By Pardo, Juan A.. Buenos Aires : CEI, 1968 . 173 p. : , Sumario 24 cm..

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