Citations
'The Ordnance Board: an historical note', 1965-01, GBR/3296/Maps/CCSA.IM_446_10, IM_446_10. Cambridge University Library. |
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'The Ordnance Board: an historical note', 1965-01, GBR/3296/Maps/CCSA.IM_446_10, IM_446_10. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/239567 Accessed September 24, 2024. |