Reply To: ISBN question Home › Forums › English Braille American Edition › ISBN question › Reply To: ISBN question May 10, 2010 at 4:32 pm #20313 Chris ClemensKeymaster Hi, You would omit the parenthetical pbk. List only the ISBN or ISBNs (if both 10 and 13 digit ISBNs are given, you list both). 🙂 Jana