Citations
Ordnance Survey triangulation demonstration, 1965-04-21, GBR/3296/Maps/CCSA.JHA_409_12, JHA_409_12. Cambridge University Library. |
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Ordnance Survey triangulation demonstration, 1965-04-21, GBR/3296/Maps/CCSA.JHA_409_12, JHA_409_12. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240838 Accessed November 16, 2024. |