https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=copydate%3A%221969%20%281979%20impr.%29.%22&sort_by=title_az&format=rss 4 0 50 ISBN:968270085X https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=13008 ]]> By Fuentes, Carlos,.
México : J. Mortiz, 1969 .
115 p. 968270085X

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=13008 ISBN:9684030843 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=101641 ]]> By Segel, Yonny.
México : Compañía General de Ediciones, 1969 .
192 p. : , "Versión en español de la Colección Made simple de Doubleday & Co. de Nueva York" 9684030843

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=101641 ISBN:9682304849 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=18651 ]]> By Whitrow, Gerald J..
México : Siglo XXI, 1969 .
135 p. 9682304849

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=18651 ISBN:846101023X https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=43765 ]]> By Michels, Robert.
Buenos Aires : Amorrortu, 1969 .
2 v. 846101023X

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