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A Treatise on Plane and Spherical Trigonometry, and its Applications to Astronomy and Geodesy/en-ca/a-treatise-on-plane-and-spherical-trigonometry-and-its-applications-to-astronomy-and-geodesy/3E08F469-E70E-4611-A4C5-487954490CE1.html3E08F469-E70E-4611-A4C5-487954490CE1
A Treatise on Plane and Spherical Trigonometry, and its Applications to Astronomy and Geodesy