Citations
Sargeant's method using Polaris and Ursa Majoris, 1809 - 1828, GBR/0180/RGO 14/37: 492-494. Cambridge University Library. |
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Sargeant's method using Polaris and Ursa Majoris, 1809 - 1828, GBR/0180/RGO 14/37: 492-494. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110084 Accessed July 03, 2024. |