Citations
Changes in Ordnance Survey policy, 1973, GBR/3296/Maps/CCSA.IM_397_30, IM_397_30. Cambridge University Library. |
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Changes in Ordnance Survey policy, 1973, GBR/3296/Maps/CCSA.IM_397_30, IM_397_30. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/239064 Accessed September 23, 2024. |