BIBLIOGRAPHY REFERENCE: BOOK Klyuch Aritmetiki, Traktat ob okruzhnosti Author Jamshīd al-Kāshī (Author) B. Rozenfel’da (Translator) V. Segalya (Editor) A.P. Yushkevicha (Editor) B. Rozenfel’da (Editor) Year of Publication 1956 Publisher N/A City Moscow Other Numbers 11942 See reference for OpenMind