Citations
Wireless/Telegraph Time Signals as determined at the Royal Observatory, Greenwich, corrected to Rugby, Washington, Paris, Nauen and Bordeaux, 1939, GBR/0180/RGO 43/96, Box 12: RGO 43/85-113: Series GBR/0180/RGO 43. Cambridge University Library. |
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Wireless/Telegraph Time Signals as determined at the Royal Observatory, Greenwich, corrected to Rugby, Washington, Paris, Nauen and Bordeaux, 1939, GBR/0180/RGO 43/96, Box 12: RGO 43/85-113: Series GBR/0180/RGO 43. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/1970513 Accessed March 17, 2025. |