https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Rinc%C3%B3n%2C%20Valent%C3%ADn%22&sort_by=title_az&format=rss 6 0 50 ISBN:9789685447768 (13 dígitos) | 9685447594 (10 dígitos) https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=154631 By Rincón, Valentín.
México : Nostra, 2007 .
140 p. 9789685447768 (13 dígitos) | 9685447594 (10 dígitos)

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=154631 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=208241 By Rincón, Valentín.
México, D.F. : Enrique Sainz editores, 1961 .
160 p. :

]]> Place hold on Aritmética y geometría :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=208241 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=208259 By Rincón, Valentín.
México, D.F. : Enrique Sainz, 1958 .
160 p. :

]]> Place hold on Aritmética y geometría :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=208259 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=208824 By Rincón, Valentín.
México, D.F. : Enrique Sainz editores, 1962 .
160 páginas :

]]> Place hold on Aritmética y geometría :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=208824 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=210251 By Rincón, Valentín.
México, D:F : Enrique Sáinz Editores, 1982 .
208 páginas :

]]> Place hold on Aritmética y geometría : cuarto año

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=210251 ISBN:9685447349 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=206844 ]]> By Rincón, Valentín | Rincón, Gilda, | Serratos G., María del Refugio.
México, D.F. : Nostra, 2005 .
143 páginas 9685447349

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