On Fri 30 Apr, Stephen Hedges wrote:
Tomasz, are you working with imported MARC records? Some of them may have extra stuff in the ISBN tag -- like "1234567890 (pa.)" to indicate a paperback edition. (Which seems to me to violate the concept of a tracking 'number' and get it confused with information that should be in a note, if anywhere -- sorry, just one of my complaints about the sad state of MARC cataloging.)
Purely out of interest, what are Koha and other systems meant to do with a book that lists on its back cover separate ISBNs for different countries eg "An Introduction to the History of Printing Types", Dowding, The British Library & Oak Knoll Press, has "0712345779 (UK) and 1884718434 (US)" printed on the outside. Roger -- Roger Horne, 11 New Square, Lincoln's Inn, London WC2A 3QB http://hrothgar.co.uk/ mailto:roger@hrothgar.co.uk