Citations
Refraction of the altitude of the pole, GBR/0180/RGO 4/182. Cambridge University Library. |
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Refraction of the altitude of the pole, GBR/0180/RGO 4/182. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/97796 Accessed November 29, 2024. |