Citations
[Geodesy], 1939, GBR/3296/Maps/CCSA.IM_521_6, IM_521_6. Cambridge University Library. |
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[Geodesy], 1939, GBR/3296/Maps/CCSA.IM_521_6, IM_521_6. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240240 Accessed November 15, 2024. |