Citations
Estimate remaining secondary levelling task Great Britain, as at 23.8.72, 1972-08, GBR/3296/Maps/CCSA.FJ_204_7/16, FJ_204_7/16. Cambridge University Library. |
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Estimate remaining secondary levelling task Great Britain, as at 23.8.72, 1972-08, GBR/3296/Maps/CCSA.FJ_204_7/16, FJ_204_7/16. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/238849 Accessed November 14, 2024. |