ISBN 195060103X books & textbook
The Super Sudoku Book For Smart Kids: A Collection Of Over 200 Sudoku Puzzles Including 4x4's, 6x6's, 8x8's, and 9x9's That Range In Difficulty From Easy To Hard!
Wild Guess Books /2019-11-28 Paperback / 135 Pages
isbn-10: 195060103X / isbn-13: 9781950601035
