Citations
James Burns' method using double altitudes and elapsed time, 1823, GBR/0180/RGO 14/41: 58-64. Cambridge University Library. |
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James Burns' method using double altitudes and elapsed time, 1823, GBR/0180/RGO 14/41: 58-64. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110178 Accessed July 05, 2024. |