Citations
Correspondence with the Royal Observatory, 1939 - 1941, GBR/0180/RGO 16/10. Cambridge University Library. |
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Correspondence with the Royal Observatory, 1939 - 1941, GBR/0180/RGO 16/10. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/101617 Accessed October 09, 2024. |