https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ACec%2C&sort_by=title_az&format=rss 4 0 50 ISBN:9803882082 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=160324 ]]> By Rodríguez, Fernando.
Caracas : Cec, 2006 .
41 p. : 9803882082

]]> Place hold on Karl Marx /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=160324 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=139665 Guatemala : | París : | Nueva York : CEC; | UNESCO; | UNICEF, 1980 .
239 p. , Programa de Cooperación UNESCO/UNICEF.

]]> Place hold on Necesidades educativas básicas de la población rural del área Centroamericana.

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=139665 ISBN:9803882090 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=160322 ]]> By Pantin, Yolanda,.
Caracas : CEC, 2006 .
[48] p. : 9803882090

]]> Place hold on Nelson Mandela /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=160322 ISBN:9803881450 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=160323 ]]> By Yurman, Fernando,.
Caracas : CEC, 2005 .
51 p. 9803881450

]]> Place hold on Sigmund Freud /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=160323