Citations
Short history of the Ordnance Survey. Leaflet no 25, 1970-08, GBR/3296/Maps/CCSA.IM_395_85/33, IM_395_85/33. Cambridge University Library. |
|
Short history of the Ordnance Survey. Leaflet no 25, 1970-08, GBR/3296/Maps/CCSA.IM_395_85/33, IM_395_85/33. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/239005 Accessed September 23, 2024. |