Citations
1:25000 Second Series map (imperial) conventional signs / 1:25 000 Second Series map (metric) conventional signs, 1976, GBR/3296/Maps/CCSA.OS_152_20, OS_152_20. Cambridge University Library. |
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1:25000 Second Series map (imperial) conventional signs / 1:25 000 Second Series map (metric) conventional signs, 1976, GBR/3296/Maps/CCSA.OS_152_20, OS_152_20. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243310 Accessed April 29, 2025. |