Citations
'Grids & referencing systems', 1980, GBR/3296/Maps/CCSA.IM_531_8, IM_531_8. Cambridge University Library. |
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'Grids & referencing systems', 1980, GBR/3296/Maps/CCSA.IM_531_8, IM_531_8. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240347 Accessed May 12, 2025. |