Euclid
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Euclid. The Whole Fifteen Books Compendiously Demonstrated: With Archimedes's Theorems of the Sphere and Cylinder Investigated by the Method of Invisibles. London: Printed for Daniel Midwinter, Adam Ward [et al.], 1732, pp56—57 from Elementorum XV.
Special Collections & Archives, University Libraries, George Mason University, Fairfax County.
