Ahí va una noticia de hace un mes, pero creo que perfecta para estos días de química…
http://www.elperiodico.com/default.asp?idpublicacio_PK=46&idioma=CAS&idnoticia_PK=599968&idseccio_PK=1013
Cecilia.
This entry was posted on martes, abril 28th, 2009 at 21:30 and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed.
You can leave a response, or trackback from your own site.