Put at this subfiled if you use MARC21. Refer to this page http://www.loc.gov/marc/bibliographic/bd020.html
020 - International Standard Book Number (R) $z - Canceled/invalid ISBN Canceled or invalid ISBN and any parenthetical qualifying information. ISBN (invalid) and the embedded hyphens may be generated for display. Each canceled/invalid ISBN is contained in a separate subfield $z. If no valid ISBN exists, subfield $z may be used alone in the record. 020 ##$z0835200028 :$c$10.00 020 ##$a0835200019 (pbk.) :$c$2.95 [Two ISBN's associated with one catalog record, one of which is invalid.] 2012/10/4 e-Libris Helpdesk <elibris.helpd...@gmail.com>: > If all at possible you should not have records with duplicate ISBNs in your > database. If you happen to upload a record containing an ISBN that is found > in two existing records, Koha will create a third record. It does not > matter if you set up your import profile to match on the ISBN, Koha cannot > decide which of the two existing records to use. > > > On Wed, Oct 3, 2012 at 1:47 PM, Elaine Bradtke <e...@efdss.org> wrote: > >> In the process of cleaning up data to prepare for a batch upload into >> Koha, I have noticed that some of our ISBNs are not unique. These are >> books from small independent publishers who forgot to change the ISBN >> when they issued a new book. I'm happy to leave them in the ISBN >> field (020a ) as long as this won't cause problems in Koha. Looking >> at the framework it is also tagged as biblioitems.isbn. I know >> record matching uses ISBN. Does anyone know if the contents of this >> field must be unique? >> Thanks >> -- >> Elaine Bradtke >> Data Wrangler >> VWML >> English Folk Dance and Song Society | http://www.efdss.org >> Cecil Sharp House, 2 Regent's Park Road, London NW1 7AY >> Tel +44 (0) 20 7485 2206 (This number is for the English Folk Dance >> and Song Society in London, England. If you wish to phone me >> personally, send an e-mail first. I work off site) >> -------------------------------------------------------------------------- >> Registered Company No. 297142 >> Charity Registered in England and Wales No. 305999 >> --------------------------------------------------------------------------- >> "Writing about music is like dancing about architecture" >> --Elvis Costello (Musician magazine No. 60 (October 1983), p. 52) >> _______________________________________________ >> Koha mailing list http://koha-community.org >> Koha@lists.katipo.co.nz >> http://lists.katipo.co.nz/mailman/listinfo/koha >> > > > > -- > Customer Support > e-Libris Technologies, LLC > email: elibrishelpd...@gmail.com > phone: 1-877-723-9447 ext. 2 > _______________________________________________ > Koha mailing list http://koha-community.org > Koha@lists.katipo.co.nz > http://lists.katipo.co.nz/mailman/listinfo/koha -- Wishing you all the best. . . . Anthony Mao 毛慶禎 +886 2 29052334 (voice) + 886 2 29017405 (FAX) _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz http://lists.katipo.co.nz/mailman/listinfo/koha