Citations
Triangulation and levelling on the Ordnance Survey, 1946, GBR/3296/Maps/CCSA.AEE_411_16/2, AEE_411_16/2. Cambridge University Library. |
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Triangulation and levelling on the Ordnance Survey, 1946, GBR/3296/Maps/CCSA.AEE_411_16/2, AEE_411_16/2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/235581 Accessed January 08, 2025. |