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A Manual of Spherical and Practical Astronomy, Embracing the General Problems of Spherical Astronomy, the Special Applications to Nautical Astronomy, and the theory and Use of Fixed and Portable Astronomical instruments, With An Appendix On the Method of Lea
pocket,
2006,
Engelska,
ISBN 9781425567293
A Treatise On Plane and Spherical Trigonometry.
pocket,
2006,
Engelska,
ISBN 9781425523237