An introduction to arithmetic; containing the most useful rules in common arithmetic, vulgar and decimal fractions, extraction of the square and cube roots, practical questions in mensuration, and a collection of miscellaneous questions
Автор: Gray, James, 116 стр., издатель: "Книга по Требованию", ISBN: 978-5-8839-9353-3


4 из 5, 5 голос(-ов).