Citations
Ordnance Survey policy statement no 30. Incorporation of revision material into provisional editions of six-inch and 1/25,000 maps, 1951-08, GBR/3296/Maps/CCSA.OS_189_1/30, OS_189_1/30. Cambridge University Library. |
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Ordnance Survey policy statement no 30. Incorporation of revision material into provisional editions of six-inch and 1/25,000 maps, 1951-08, GBR/3296/Maps/CCSA.OS_189_1/30, OS_189_1/30. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243587 Accessed November 18, 2024. |