Citations
Photographic Zenith Tube: Records, c.1940s-1980s, GBR/0180/RGO 103. Cambridge University Library. |
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Photographic Zenith Tube: Records, c.1940s-1980s, GBR/0180/RGO 103. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/1484327 Accessed November 25, 2024. |