Citations
Small scale control job file. 1" 7th Series conventional sign cards , 1968 - 1970, GBR/3296/Maps/CCSA.OS_44_2, OS_44_2. Cambridge University Library. |
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Small scale control job file. 1" 7th Series conventional sign cards , 1968 - 1970, GBR/3296/Maps/CCSA.OS_44_2, OS_44_2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/242118 Accessed May 01, 2025. |