Citations
Methods and processes used by the Ordnance Survey for map reproduction by photo-lithography 1928, 1928, GBR/3296/Maps/CCSA.OS_150_65, OS_150_65. Cambridge University Library. |
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Methods and processes used by the Ordnance Survey for map reproduction by photo-lithography 1928, 1928, GBR/3296/Maps/CCSA.OS_150_65, OS_150_65. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243280 Accessed November 18, 2024. |