isbn ean ian sku uri
Have you considered an "identifier" ("type", "value") structure, such as is proposed here?
http://microformats.org/wiki/citation-strawman-01#identifier_and_url -- Toby A Inkster <mailto:[EMAIL PROTECTED]> <http://tobyinkster.co.uk> _______________________________________________ microformats-new mailing list microformats-new@microformats.org http://microformats.org/mailman/listinfo/microformats-new
