You will be presented with a confirmation screen. From here you can
uncheck the items you don't want to delete and decide if Koha should
delete the bib record if the last item is being deleted before clicking
-'Delete selected items.' If you'd like you can delete the bibliogrphic
+'Delete selected items.' If you'd like you can delete the bibliographic
record if you're deleting the last item by clicking the checkbox next to
'Delete records if no items remain'.