Citations
Correspondence on a quartz crystal clock, 1951, GBR/0180/RGO 9/125. Cambridge University Library. |
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Correspondence on a quartz crystal clock, 1951, GBR/0180/RGO 9/125. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/99640 Accessed November 22, 2024. |