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by Jakow TrachtenbergPaperback details (UK).
details (Germany).
ISBN: 978-0-285-62916-5 ISBN-10: 0-285-62916-6 Souvenir Press Ltd · 1989 |
See also: | ||
2011 | ペーパーバック | The Trachtenberg Speed System of Basic Mathematics |
1989 | Hardcover | The Trachtenberg Speed System of Basic Mathematics |
1982 | Hardcover | The Trachtenberg Speed System of Basic Mathematics |