ISBN 1615194215 books & textbook
The Original Area Mazes: 100 Addictive Puzzles to Solve with Simple Math―and Clever Logic!
Inaba, Naoki Murakami, Ryoichi Bellos, Alex
The Experiment /2017-10-10 Paperback / 160 Pages
isbn-10: 1615194215 / isbn-13: 9781615194216
