Citations
Leaflet No. 20 - Metrication of Ordnance Survey Maps, 1969, GBR/3296/Maps/CCSA.MOD_L155_23.7, MOD_L155_23.7. Cambridge University Library. |
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Leaflet No. 20 - Metrication of Ordnance Survey Maps, 1969, GBR/3296/Maps/CCSA.MOD_L155_23.7, MOD_L155_23.7. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246677 Accessed November 17, 2024. |