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Citations

First notes of sextant observations, 1676 - 1679, GBR/0180/RGO 1/1. Cambridge University Library.

First notes of sextant observations, 1676 - 1679, GBR/0180/RGO 1/1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/97474 Accessed December 23, 2024.

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