Citations
Ordnance Survey surveyors instructions. Module 2: superseded pages and amendments, 1976 - 1985, GBR/3296/Maps/CCSA.OS_154_1, OS_154_1. Cambridge University Library. |
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Ordnance Survey surveyors instructions. Module 2: superseded pages and amendments, 1976 - 1985, GBR/3296/Maps/CCSA.OS_154_1, OS_154_1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243359 Accessed April 28, 2025. |