ISBN 1973162962 books & textbook
Strimko Book 1: 150 Easy-to-Master Number Logic Puzzles
Grabarchuk, Serhiy Grabarchuk, Tanya Grabarchuk, Peter Grabarchuk, Helen
Independently published /2017-10-27 Paperback / 108 Pages
isbn-10: 1973162962 / isbn-13: 9781973162964
