Citations
The relationship between the new National Grid and the old Cassini co-ordinates, 1949, GBR/3296/Maps/CCSA.OS_381_122, OS_381_122. Cambridge University Library. |
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The relationship between the new National Grid and the old Cassini co-ordinates, 1949, GBR/3296/Maps/CCSA.OS_381_122, OS_381_122. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/244799 Accessed April 26, 2025. |