https://digitalcollections.american.edu/Documents/Detail/the-higher-trigonometry-superrationals-of-second-order/107334
The Higher trigonometry : superrationals of second order - American University Archives Digital...
The Higher trigonometry : superrationals of second order, Gift of Artemas Martin., QA538-N55-1892, Newman, Francis William, 1805-1897, English, 1892, 117 p. :...
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