Citations
Ordnance Survey policy statement no 4. Small scale field revision, 1956-05, GBR/3296/Maps/CCSA.OS_189_1/4/3, OS_189_1/4/3. Cambridge University Library. |
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Ordnance Survey policy statement no 4. Small scale field revision, 1956-05, GBR/3296/Maps/CCSA.OS_189_1/4/3, OS_189_1/4/3. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243544 Accessed November 18, 2024. |