Citations
Ordnance Survey technical bulletin no 3, 1961-06, GBR/3296/Maps/CCSA.OS_145_1/3, OS_145_1/3. Cambridge University Library. |
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Ordnance Survey technical bulletin no 3, 1961-06, GBR/3296/Maps/CCSA.OS_145_1/3, OS_145_1/3. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243129 Accessed May 01, 2025. |