Citations
Ordnance Survey technical bulletin no 13, 1966-07, GBR/3296/Maps/CCSA.OS_145_1/13, OS_145_1/13. Cambridge University Library. |
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Ordnance Survey technical bulletin no 13, 1966-07, GBR/3296/Maps/CCSA.OS_145_1/13, OS_145_1/13. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243139 Accessed April 29, 2025. |