Citations
Ordnance Survey society of photogrammetry. Journal for September 1949, number 2, 1949-09, GBR/3296/Maps/CCSA.OS_375_2, OS_375_2. Cambridge University Library. |
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Ordnance Survey society of photogrammetry. Journal for September 1949, number 2, 1949-09, GBR/3296/Maps/CCSA.OS_375_2, OS_375_2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/244627 Accessed April 25, 2025. |