A key to the Western calculator, containing the solution of all the examples and questions for exercise . To which is added, some useful rules, designed chiefly to facilitate the labour of teachers; and assist such as have not the opportunity of a tutor
Автор: John Armstrong, 153 стр., издатель: "Книга по Требованию", ISBN: 978-5-8836-1633-3| Под заказ: | ||||
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4 из 5, 9 голос(-ов).