Citations
Ordnance Survey: The projection for Ordnance Survey maps and plans and the national reference system, 1951 - 1960, GBR/3296/Maps/CCSA.OS_379_4, OS_379_4. Cambridge University Library. |
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Ordnance Survey: The projection for Ordnance Survey maps and plans and the national reference system, 1951 - 1960, GBR/3296/Maps/CCSA.OS_379_4, OS_379_4. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/244736 Accessed April 25, 2025. |