Citations
Ordnance Survey policy statement no 58. Change of 6-inch sheet lines, 1953-06, GBR/3296/Maps/CCSA.OS_189_1/58, OS_189_1/58. Cambridge University Library. |
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Ordnance Survey policy statement no 58. Change of 6-inch sheet lines, 1953-06, GBR/3296/Maps/CCSA.OS_189_1/58, OS_189_1/58. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243624 Accessed November 18, 2024. |