https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Ayers%2C%20Harry%2C%22&sort_by=title_az&format=rss 2 0 50 ISBN:8427713266 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=95361 ]]> By Nicolson, Doula.
Madrid : Narcea, 2002 .
171 p. 8427713266

]]> Place hold on Problemas de la adolescencia :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=95361 ISBN:9786077075233 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=200926 ]]> By Nicolson, Doula.
México : Alfaomega, 2013 .
171 p. 9786077075233

]]> Place hold on Problemas de la adolescencia :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=200926