Citations
Ordnance Survey surveyors instructions. Module 5: superseded pages and amendments, 1976 - 1982, GBR/3296/Maps/CCSA.OS_151_7, OS_151_7. Cambridge University Library. |
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Ordnance Survey surveyors instructions. Module 5: superseded pages and amendments, 1976 - 1982, GBR/3296/Maps/CCSA.OS_151_7, OS_151_7. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243287 Accessed April 29, 2025. |