ISBN 1615199241 books & textbook
The Big Puzzle Book of Area Mazes: 300 Mind-Bending Math Puzzles in Five Challenge Levels (Original Area Mazes)
Inaba, Naoki Murakami, Ryoichi
The Experiment /2022-12-27 Paperback / 400 Pages
isbn-10: 1615199241 / isbn-13: 9781615199242
