https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22M%C3%A9ndez%2C%20Francisco%20Xavier%2C%22&sort_by=title_az&format=rss 3 0 50 ISBN:8436813286 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=94741 ]]> By Méndez, Francisco Xavier.
Madrid : Pirámide, 1999 .
245 p. 8436813286

]]> Place hold on Miedos y temores en la infancia :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=94741 ISBN:8436805291 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=103555 ]]> Madrid : Pirámide, 2000 .
487 p. : 8436805291

]]> Place hold on Modificación de conducta con niños y adolescentes :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=103555 ISBN:8436812875 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=82126 ]]> By Méndez, Francisco Xavier.
Madrid : Pirámide, 1998 .
285 p. : 8436812875

]]> Place hold on El niño que no sonríe :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=82126