Deleting duplicates

[Sandra]

Hi
I sent a message previously about merging editions but I think what I actually need is to delete. The kindle version of this book has been entered three times. I don’t know how or by whom. The second and third entries include a note ‘this ISBN has already been used…’. Can those two partially-complete duplicate entries be removed? My book should show that there are two editions (paperback and kindle) not four.
Thank you so much for your help