http://catalogo.fi.uba.ar/cgi-bin/koha/opac-search.pl?q=ccl=callnum%3A658.5%2C%20B116%20and%20au%3ABaca%20Urbina%2C%20Gabriel&format=rss2 2 0 50 ISBN 9701056876 http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=7874 By Baca Urbina, Gabriel. México : McGraw-Hill/Interamericana, 2006 . xiv, 392 p. : 24 cm. 9701056876

]]> http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=7874 ISBN 9701007468 http://catalogo.fi.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=5168 By Baca Urbina, Gabriel. México : McGraw-Hill Interamericana de México, 1995 . xvi, 339 p. : , Indice de contenido de capítulos | Preguntas y problemas al final de cada capítulo | Indice alfabético 24 cm.. 9701007468

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