Hi all, I am trying to find the best way to include an item's accession number (i.e. ILS system id) in a COiNS span. This is in the context of library catalog pages where I'd like to be able to retrieve the ILS accession number to return to LibraryThing for Libraries. I see no mention of an rft.identifier key/value pair on the COiNS site's brief guide to books [1]. It does, however, appear as an element in the COiNS online generator for generic items [2]. Googling returned a couple of results using rft.identifier to hold urls. Can anyone enlighten me as to whether using rft.identifier to hold the ILS accession number is valid? Or suggest a more suitable key/value pair? Thanks for any help you can provide. Chris Catalfo Programmer, LibraryThing [1] http://ocoins.info/cobgbook.html [2] http://generator.ocoins.info/?sitePage=info/dc.html&