Citations
Thompson-Watts plotting machine, 1954-04, GBR/3296/Maps/CCSA.DA_607_4, DA_607_4. Cambridge University Library. |
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Thompson-Watts plotting machine, 1954-04, GBR/3296/Maps/CCSA.DA_607_4, DA_607_4. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/236388 Accessed September 21, 2024. |