Citations
The projection for Ordnance Survey maps and plans and the National Reference system , 1951 - 1960, GBR/3296/Maps/CCSA.IM_420_6, IM_420_6. Cambridge University Library. |
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The projection for Ordnance Survey maps and plans and the National Reference system , 1951 - 1960, GBR/3296/Maps/CCSA.IM_420_6, IM_420_6. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/239288 Accessed November 14, 2024. |