Citations
Correspondence on variometers, 1937 - 1948, GBR/0180/RGO 9/117. Cambridge University Library. |
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Correspondence on variometers, 1937 - 1948, GBR/0180/RGO 9/117. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/99632 Accessed February 16, 2025. |