Citations
Organized plane tabling. Ordnance Survey training series no 1, 1931-01-10 - 1931-05, GBR/3296/Maps/CCSA.OS_152_5, OS_152_5. Cambridge University Library. |
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Organized plane tabling. Ordnance Survey training series no 1, 1931-01-10 - 1931-05, GBR/3296/Maps/CCSA.OS_152_5, OS_152_5. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243294 Accessed April 29, 2025. |