https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Helbrough%2C%20Emma%22&sort_by=title_az&format=rss 2 0 50 ISBN:0746073968 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=135740 ]]> By Helbrough, Emma.
[Gran Bretaña] : Usborne, 2006 .
32 p. : 0746073968

]]> Place hold on Escenas del planeta tierra /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=135740 ISBN:9788466220385 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=184100 ]]> By Helbrough, Emma.
Madrid : Libsa, 2010 .
32 p. : 9788466220385

]]> Place hold on La vida en los océanos /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=184100