Citations
Sheet 167 experimental graticule reference, 1940, GBR/3296/Maps/CCSA.MOD_L155-6/1a-c, MOD_L155-6/1a-c. Cambridge University Library. |
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Sheet 167 experimental graticule reference, 1940, GBR/3296/Maps/CCSA.MOD_L155-6/1a-c, MOD_L155-6/1a-c. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246554 Accessed May 01, 2025. |