Citations
Report of the Royal Greenwich Observatory, 1971, GBR/0180/RGO 17/4/1. Cambridge University Library. |
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Report of the Royal Greenwich Observatory, 1971, GBR/0180/RGO 17/4/1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/111653 Accessed January 18, 2025. |