https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Kramer%2C%20Fernando%22&sort_by=title_az&format=rss 2 0 50 ISBN:8483191652 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=143071 ]]> By Kramer, Fernando.
Madrid : Libros de la Catarata, 2003 .
236 p. : 8483191652

]]> Place hold on Educación ambiental para el desarrollo sostenible /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=143071 ISBN:8483191458 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=153633 ]]> By Kramer, Fernando.
Madrid : Los Libros de la Catarata, 2002 .
216 p. 8483191458

]]> Place hold on Manual práctico de educación ambiental :

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=153633