Citations
Ordnance Survey policy statement no 60. Maps produced by the Geological Survey of Great Britain, 1956-05, GBR/3296/Maps/CCSA.OS_189_1/60/1, OS_189_1/60/1. Cambridge University Library. |
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Ordnance Survey policy statement no 60. Maps produced by the Geological Survey of Great Britain, 1956-05, GBR/3296/Maps/CCSA.OS_189_1/60/1, OS_189_1/60/1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243626 Accessed April 28, 2025. |