Citations
Ordnance Survey policy statement no 31. The 1/625,000 series, 1956-04, GBR/3296/Maps/CCSA.OS_189_1/31/3, OS_189_1/31/3. Cambridge University Library. |
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Ordnance Survey policy statement no 31. The 1/625,000 series, 1956-04, GBR/3296/Maps/CCSA.OS_189_1/31/3, OS_189_1/31/3. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243590 Accessed November 18, 2024. |