ISBN 9784006002893 books & textbook

equation stories and third week math expression is born (Iwanami modern library) (2013) ISBN: 4006002890 [Japanese Import]

ToÌ„kyoÌ„ : Iwanami Shoten, 2013. /2013-06-01 Paperback Bunko
isbn-10: 4006002890 / isbn-13: 9784006002893