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Citations

Captain Robert Tucker on a method using the altitude and a true bearing of the pole star, 1819, GBR/0180/RGO 14/37: 237-250. Cambridge University Library.

Captain Robert Tucker on a method using the altitude and a true bearing of the pole star, 1819, GBR/0180/RGO 14/37: 237-250. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110065 Accessed December 08, 2022.

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