ISBN 0140124993 books & textbook
How to Solve It : A New Aspect of Mathematical Method
Penguin /1990T Paperback / 304 Pages
isbn-10: 0140124993 / isbn-13: 9780140124996
Penguin /1990T Paperback / 304 Pages
isbn-10: 0140124993 / isbn-13: 9780140124996