O'Callaghan, J. Solution of two famous problems (revised): How to find the area of a circle, or of any part of a circle, and to trisect an angle. Browne and Nolan.
MLA CitationO'Callaghan, James. Solution of Two Famous Problems (revised): How to Find the Area of a Circle, or of Any Part of a Circle, and to Trisect an Angle. Browne and Nolan.
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