Citations
Correspondence with Belgium observatories, 1956 - 1963, GBR/0180/RGO 9/466. Cambridge University Library. |
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Correspondence with Belgium observatories, 1956 - 1963, GBR/0180/RGO 9/466. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/99981 Accessed May 10, 2024. |