Citations
Base measurement, 1960 - 1979, GBR/3296/Maps/CCSA.OS_378_3, OS_378_3. Cambridge University Library. |
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Base measurement, 1960 - 1979, GBR/3296/Maps/CCSA.OS_378_3, OS_378_3. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/244725 Accessed April 26, 2025. |