What does the shelfmark prefix 'XX' mean?

[d67a9y]

'XX' at the start of a shelfmark indicates that the item is in the Library store. Store books can be requested using the 'Store Requests' form, available on the catalogue front page and under the 'Borrowing' tab on the Library homepage.

For more information:

http://www.dur.ac.uk/library/using/borrowing/store/

http://www.dur.ac.uk/resources/library/locations.pdf