Citations
Correspondence on American observatories, 1938 - 1959, GBR/0180/RGO 9/475. Cambridge University Library. |
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Correspondence on American observatories, 1938 - 1959, GBR/0180/RGO 9/475. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/99990 Accessed November 24, 2024. |