Crossword clues for Supplement to a book:ADDENDUMSupplemental book material, and instructions for solving 18-, 24-, 52-, and 62-AcrossAPPBook supplement: Abbr.ADDENDABack-of-the-book supplementsADDENDUMSBook supplements, and an apt title for this puzzleADDENDABook supplementsADDBook supplement: Abbr.APPSBook supplements: Abbr.ADDENDASupplements to books.ADDENDUMSupplement to a book
