Citations
Ordnance Survey surveyors instructions. Module 7 : drawing instructions and specifications: L-Z, 1981 - 1989, GBR/3296/Maps/CCSA.OS_151_2, OS_151_2. Cambridge University Library. |
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Ordnance Survey surveyors instructions. Module 7 : drawing instructions and specifications: L-Z, 1981 - 1989, GBR/3296/Maps/CCSA.OS_151_2, OS_151_2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243282 Accessed November 18, 2024. |