Citations
Correspondence on the design of the PZT (Photographic Zenith Tube) at the RGO, 1943 - 1952, GBR/0180/RGO 43/23, Box 3: RGO 43/18-23: Series GBR/0180/RGO 43. Cambridge University Library. |
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Correspondence on the design of the PZT (Photographic Zenith Tube) at the RGO, 1943 - 1952, GBR/0180/RGO 43/23, Box 3: RGO 43/18-23: Series GBR/0180/RGO 43. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/1969797 Accessed March 15, 2025. |