Hall, H.S. Elementary algebra for schools : (containing a chapter on graphs) / by H.S. Hall and S.R. Knight; H.S. Hall .— 8 edition, revised and enlarged .— : The Macmillan Company, 1906 .— 534 с. — Lang: eng .— URL: https://rucont.ru/efd/130013 (дата обращения: 06.08.2024)