https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Bol%C3%ADvar%2C%20Sim%C3%B3n%2C%22&sort_by=title_az&format=rss 5 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=93452 By Bolívar, Simón,.
México : SEP, 1943 .
xxx, 221 p.

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=93452 ISBN:9786074770278 (13 dígitos) | 9706541985 (10 dígitos) https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=190144 By Martí, José,.
México : UAM, Unidad Xochimilco, 2009 .
42 p. 9786074770278 (13 dígitos) | 9706541985 (10 dígitos)

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=190144 ISBN:9233021033 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=20981 ]]> By Bolívar, Simón,.
París : UNESCO, 1983 .
308 p. 9233021033

]]> Place hold on La esperanza del universo /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=20981 ISBN:9703212174 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=177265 ]]> By Bolívar, Simón,.
México : UNAM, 2004 .
74 p. 9703212174

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=177265 ISBN:9800112510 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=143233 ]]> By Bolívar, Simón,.
Caracas : Monte Avila, 2004 .
147 p. 9800112510

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