Citations
Correspondence with Roger Hellyer concerning military mapping, 2001, GBR/3296/Maps/CCSA.IM_427_15, IM_427_15. Cambridge University Library. |
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Correspondence with Roger Hellyer concerning military mapping, 2001, GBR/3296/Maps/CCSA.IM_427_15, IM_427_15. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/239384 Accessed May 15, 2025. |